Knix
Ultrathin No-Show Boyshort Period Panty Absorption: Moderate
This is a boyshort-cut period panty from Canadian brand Knix, designed for light to moderate protection against menstrual flow, urine leakage, and sweat. It features patented 360 LeakSeal™ gusset trim to prevent leaks from any angle, plus a liquid-resistant fabric and seamless construction for a discreet fit. Made from a silky stretch nylon-blend microfibre with a cotton-lined gusset, it offers moderate absorbency equivalent to about 2.5 regular tampons and is machine washable.
- Material
- Silky, stretch nylon-blend microfibre
- Gender
- female
- Style
- casual
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Specifications
Ultrathin no-show boyshort period panty with moderate absorption and patented leak protection.
Patented 360 LeakSeal gusset trim; moderate absorption (equivalent to 2.5 regular tampons); liquid-resistant fabric; stretch waistband; seamless construction; suitable for periods, urine leakage, and sweat.
- Material
- Silky, stretch nylon-blend microfibre
- Style
- casual
- Occasion
- everyday, casual
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- ultrathin construction for no-show wear
- boyshort cut for full coverage
- silky nylon-blend microfibre fabric
- patented 360 LeakSeal gusset trim locks in leaks
- moderate absorption (equivalent to 2.5 regular tampons)
- liquid-resistant fabric prevents spills
- stretch waistband for comfort
- strategic seamless construction for discreet look
- ideal for periods, light bladder leakage, sweat
Product Insights
Knix Ultrathin No-Show Boyshort Period Panty, Moderate, 19.99 CAD, in stock, 1 review: the point of view is a thin no-show boyshort whose seamless-edge coverage disappears under leggings when the fit is right, with a fixed gusset built from double polyester cores, a carbon-cotton face, and a monolithic 100% polyurethane/TPU waterproof barrier plus patented 360 LeakSeal perimeter trim that resists side leaks; the core promise is dual-purpose moderate absorbency—about 2.5 tampons, 4-8 tsp, and a brand tier that spans 12.5-22.5 mL—for light-to-moderate workday flow, sweat, light bladder leaks, and discharge, with one-way moisture wicking and carbon-blended cotton odor resistance in a gusset that has no insert to swap; the main tradeoff is that moderate is not heavy flow or overnight protection, so heavier days need Knix Heavy (4-7 tampons), the panty runs smaller than Knix adult styles so sizing up preserves the no-show fit, breathability suits all-day wear and light activity rather than heavy exercise or extreme heat that needs a moisture-wicking athletic style, and care is cold delicate wash with mild detergent and lay flat to dry with no dryer, bleach, iron, or softener; three colors span X-SMALL to X-LARGE, all 15 color-size combinations are in stock at one flat price with the same moderate 2.5-tampon absorbency, Patterned White is the only print and Black the only dark colorway.
Verified claims
- No-show
- Boyshort coverage and seamless edges disappear under leggings when the fit is right
- Sizing
- Runs smaller than Knix adult styles; size up to keep the no-show fit
- Variants
- Moderate is a brand tier, not a certified volume: the 2.5-tampon rating spans 12.5-22.5 mL.
- Flow duration limits
- Suits a light-to-moderate workday, not heavy flow or overnight; step up to Knix Heavy (4-7 tampons).
- Layer construction
- Double polyester cores, carbon-cotton face, and TPU barrier enable moderate absorbency for light-to-moderate flow in a thin gusset.
- Layer longevity
- The waterproof barrier is bonded into the gusset as a fixed laminate, with no insert to swap.
- Materials
- Outer knit: 77% nylon/23% Lycra XTRA LIFE; gusset: 86% cotton/10% spandex/4% carbon; two polyester cores; coating: 100% PU.
- Odour control
- The body-facing carbon-cotton layer wicks moisture off skin and targets odour.
- Leak seal
- Patented 360 LeakSeal trim seals the gusset's full perimeter, blocking side leaks even if you toss and turn
- Waterproof barrier
- The 100% polyurethane backing is a monolithic solid film, with no pores to clog or wick
- Breathability
- Comfortable for all-day wear and light activity; heavy exercise or extreme heat needs a moisture-wicking athletic style
- Odor control
- Carbon-blended cotton gusset face wicks moisture and resists odor.
- Sweat
- Rated for sweat alongside periods and light bladder leaks
- Gusset dryness
- Cotton-carbon gusset face wicks moisture one-way to limit rewet
- Care instructions
- Wash cold on delicate with mild detergent, lay flat to dry; no dryer, bleach, iron or softener.
- Dual purpose
- The same moderate gusset is rated for periods, urine leakage, sweat and discharge, not a single use case.
- Absorbency
- Rated moderate: about 2.5 tampons (4-8 tsp) for medium-flow days.
- Options
- Three colors across X-SMALL to X-LARGE; Patterned White is the only print, Black the only dark colorway.
- Variant availability
- All 15 color-size combinations are in stock at one flat price, and every variant has the same moderate 2.5-tampon absorbency.
Product record
- Title
- Ultrathin No-Show Boyshort Period Panty Absorption: Moderate
- Brand
- Knix
- Price
- 19.99 CAD
- Availability
- In stock
- Rating
- 1 reviews
Buying Guide
1 comparison · 11 sourcesUses
Everyday period coverage under fitted clothes
This thin, no-show boyshort period panty is designed for wearing on moderate-flow days when you want period protection that stays hidden under fitted clothing. Its absorption is listed as moderate, equivalent to about 2.5 regular tampons, and the liquid-resistant fabric plus a 360 LeakSeal™ gusset trim are intended to help keep leaks contained — even overnight if you toss and turn. Note that the manufacturer's packaging describes the underwear as leakproof, though this is a label claim.[1,2]
Everyday backup for urine leakage
Knix presents this ultrathin no-show boyshort period panty as suitable for urine leakage, along with periods and sweat. Its moderate absorption and no-show boyshort cut make it an option to wear under everyday clothes when you want discreet coverage.[1]
Everyday wear with sweat absorption
Knix markets this ultrathin no-show boyshort period panty for sweat along with periods and urine leakage. Its no-show, boyshort style is meant to stay discreet under clothing while handling light moisture through the day.[1]
Discreet period protection under your clothes
For days when you want period protection that stays invisible, Knix describes this boyshort as leakproof and ultrathin, with seamless construction designed to look discreet under clothing. The low-rise, full-coverage boyshort style offers broad hip coverage, and it's made with moderate absorption for lighter flow days. Note that the ultrathin, no-show, and leakproof descriptions come from the manufacturer's labeling.[1,2,3,4]
Product comparison
Compared within this brand.
| Ultrathin No-Show Boyshort Period Panty Absorption: Moderate: Choose this if you want a no-show boyshort period panty for moderate-flow days: its absorption is rated moderate, equivalent to about 2.5 regular tampons, and the patented 360 LeakSeal gusset trim is designed to help lock in leaks even if you toss and turn. It's also presented as suitable for urine leakage and sweat, with seamless construction and liquid-resistant fabric intended for a discreet look under clothes. Note that the moderate capacity may not suit heavier flow days, and the absorbency comes from cotton woven with carbon and spandex rather than chemical treatment.[1,5] | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate: Choose this if you want a no-show, ultra-thin period panty with moderate absorbency — the listing rates it as equivalent to 2.5 regular tampons — for periods, urine leakage, or sweat. It features a patented 360 LeakSeal gusset trim that helps lock in leaks even if you toss and turn, liquid-resistant fabric, seamless construction for a discreet look under clothes, and a machine-washable silky nylon-blend microfibre body. Note it comes as a single panty in a high-cut, high-waist cut with only moderate absorbency, so heavier-flow days may call for more protection, and it's offered in X-Small through X-Large in Black and Green.[6,7,8,9] | Ultrathin No-Show High-Waist Period Panty Absorption: Moderate: Choose this if you want a high-waist, no-show period panty for moderate-flow days: the absorption level is listed as moderate (equivalent to 2.5 regular tampons), with liquid-resistant fabric and a patented 360 LeakSeal gusset trim designed to help lock in leaks even when you toss and turn. Its silky, stretch nylon-blend microfibre and strategic seamless construction are intended for a discreet look under clothes, and it is presented as suited to periods, urine leakage, and sweat, in sizes X-Small through X-Large and four colors. Note that one Knix reviewer reported the brand's gussets feeling too small with limited leak coverage and a lining that can feel rough the first couple of wears.[10,11] |
Image Analysis
3 images- 01
Product
Front view of a worn boyshort-style panty with a smooth, ultrathin fabric featuring an all-over small floral print and a slightly thicker circular crotch panel visible at the center front.
- Silhouette and fitLow-rise boyshort silhouette worn on model, full-coverage across hips and upper thighs with a continuous single-piece front panel; waistband sits below the navel.
1 region
x 0.04 · y 0.22 · w 0.92 · h 0.56 (high) - Fabric surface and finishSmooth, slightly shiny knit or microfiber appearance with a close, almost seamless edge finish around leg openings and waistband.
1 region
x 0.04 · y 0.40 · w 0.92 · h 0.35 (high) - Crotch panelCircular, slightly thicker-looking crotch panel centered on the front lower area with a subtle contour seam visible around its edge.
1 region
x 0.42 · y 0.64 · w 0.16 · h 0.12 (high) - All-over printSmall scattered floral sprigs in two main petal colors and olive-green stems printed across the entire visible panty surface, repeating with no central motif.
1 region
x 0.06 · y 0.34 · w 0.88 · h 0.44 (high) - Matching top visibleLower edge of a matching bra or top with the same print is visible at the top of the image above the waistband.
1 region
x 0.08 · y 0.06 · w 0.84 · h 0.18 (high)
Other
Studio product shot cropped to mid-torso and upper thighs on a model with neutral seamless background and soft, even lighting.
- Shot compositionCropped mid-torso to upper-thigh frontal crop showing model's abdomen and hips; product centered in frame.
- Background and lightingUniform warm beige background with soft, diffuse lighting and minimal shadows.
- Model hand cropRight hand of the model is partially visible at the right image edge resting near the hip.
1 region
x 0.86 · y 0.12 · w 0.12 · h 0.24 (high) - Image qualitySharp focus on garment and skin texture with no visible text or labels; colors appear natural.
Colors
off-white· main fabric#F9EDEBpale lavender· floral petals (lavender)muted cornflower blue· floral accents (blue)olive green· floral stems and leaves- Silhouette and fitLow-rise boyshort silhouette worn on model, full-coverage across hips and upper thighs with a continuous single-piece front panel; waistband sits below the navel.
- 02
Product
Rear view of a matching floral undergarment set worn by a model; visible items are a full-coverage boyshort style panty and the back band of a matching bra. The panty has a smooth, lightweight knit surface with an all-over small floral print and a vertical center-back seam; leg openings appear laser-cut or bonded with minimal visible hem.
- Panty silhouetteFull-coverage boyshort style panty with a mid-to-high waistline and broad hip coverage extending to upper thighs, visible from the rear.
1 region
x 0.12 · y 0.34 · w 0.76 · h 0.54 (high) - Panty material and finishSmooth, slightly glossy knit fabric with a very tight surface and no visible external texture or ribbing.
1 region
x 0.20 · y 0.43 · w 0.60 · h 0.44 (high) - Panty printAll-over small floral print composed of scattered sprigs and buds in a repeating pattern across the panty back.
1 region
x 0.12 · y 0.34 · w 0.76 · h 0.54 (high) - Center-back seamSingle visible vertical center-back seam running from waistband to crotch area, stitched and slightly raised against the fabric surface.
1 region
x 0.45 · y 0.37 · w 0.10 · h 0.44 (high) - Leg opening finishLeg openings show a very narrow, bonded or laser-cut edge with no turned hem or elastic piping visible.
1 region
x 0.12 · y 0.72 · w 0.76 · h 0.15 (high) - Gusset outlineSubtle outline of a crotch/gusset panel visible at the rear seam intersection, indicated by a slight change in fabric contour.
1 region
x 0.36 · y 0.72 · w 0.28 · h 0.16 (medium) - Matching bra bandBra back band made from the same floral fabric as the panty, visible across the upper back with a U-shaped lower cut and wide band ending at the side seams.
1 region
x 0.12 · y 0.06 · w 0.76 · h 0.22 (high) - Bra strap hardwareAdjustable white bra strap with a small white plastic slider and a metal ring attaching the strap to the band on the right shoulder.
1 region
x 0.66 · y 0.02 · w 0.18 · h 0.24 (high)
Other
Studio rear-shot composition of a model against a plain light backdrop. Image shows partial arms and lower hair, even soft lighting with minimal shadows and neutral background.
- Shot compositionRear-facing crop of a torso and hips, framed from just below the shoulder blades to upper thighs with the subject centered and slightly turned toward the right.
- BackgroundUniform off-white or very pale beige studio backdrop with smooth, even tone and no visible props.
- Model visible partsModel's hair falls over the left shoulder; portions of both arms and hands are visible at the image edges.
2 regions
x 0.00 · y 0.00 · w 0.35 · h 0.40 (high); x 0.81 · y 0.58 · w 0.19 · h 0.41 (high) - Lighting and shadowSoft, diffused studio lighting with minimal harsh shadows and gentle shadowing beneath the bra band and around the lower back contours.
Colors
pale cream· panty baselavender· floral printmuted olive· floral leaves and stemswhite· bra strap- Panty silhouetteFull-coverage boyshort style panty with a mid-to-high waistline and broad hip coverage extending to upper thighs, visible from the rear.
- 03
Product
A single floral-patterned white underwear panty is visible through a vertical rectangular window on the right; the visible portion shows white fabric with scattered purple and blue floral sprigs and brown stems.
- Visible garment panelVertical narrow portion of a white panty visible through packaging window showing a repeating floral pattern of small purple and blue flower sprigs with thin brown stems and leaves.
1 region
x 0.71 · y 0.20 · w 0.17 · h 0.66 (high) - Fabric finishFabric appears smooth with a matte to slightly satiny finish and printed floral motif; no seams or stitching are visible in the exposed strip.
1 region
x 0.71 · y 0.20 · w 0.17 · h 0.66 (medium) - Underwear iconSmall simple line-drawing icon of a pair of boyshort-style underwear printed on the front panel near the lower-left of the pink label.
1 region
x 0.18 · y 0.64 · w 0.10 · h 0.06 (high)
Packaging
Black rectangular cardboard packaging with a large pale pink square label on the left showing brand name and product text, and a circular pale pink size sticker at the upper right; a vertical clear window on the right shows the garment inside.
- Box shape and finishFlat rectangular black cardboard box with a matte finish and a centered cutout hanger tab protruding from the top.
1 region
x 0.03 · y 0.01 · w 0.94 · h 0.98 (high) - Brand wordmark“knix”
1 region
x 0.07 · y 0.18 · w 0.39 · h 0.20 (high) - Product description text“Leakproof UltraThin No-Show Boybrief Underwear”
1 region
x 0.08 · y 0.34 · w 0.31 · h 0.06 (high) - French product text“Caleçon très mince invisible étanche”
1 region
x 0.08 · y 0.40 · w 0.31 · h 0.06 (high) - Absorbency label text“Moderate Absorbency Absorption pour flux moyenne”Partial
1 region
x 0.07 · y 0.62 · w 0.19 · h 0.06 (medium) - Size and quantity sticker“S | P QTY | QTÉ : 1”
1 region
x 0.72 · y 0.09 · w 0.15 · h 0.13 (high) - Upper circular sticker iconSmall line drawing of boyshort underwear inside the circular size sticker above the 'S | P QTY | QTÉ : 1' text
1 region
x 0.72 · y 0.09 · w 0.15 · h 0.13 (high)
Other
Studio-style product photograph on a light neutral background with soft even lighting and subtle drop shadow; image cropped to show the full front of the packaging centered in frame.
- Background and lightingEven light neutral gray background with soft shadow along the left edge of the box indicating studio lighting from the right-front.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Hanger tabWhite cardboard hanger tab protruding from the top center of the box, with a curved hook cutout.
1 region
x 0.41 · y 0.00 · w 0.17 · h 0.09 (high) - Crop and alignmentBox is photographed straight-on and centered with small even margins on left and right; no additional props or people are visible.
Colors
matte black· main boxPackaging#0E0E0Dpale blush pink· label backgroundPackagingsoft pink· size stickerPackagingbright white· main fabriclavender purple· floral printlight brown· floral stems- Visible garment panelVertical narrow portion of a white panty visible through packaging window showing a repeating floral pattern of small purple and blue flower sprigs with thin brown stems and leaves.
Brand PDP Lookup
- Brand
- Knix
Teen Leakproof UltraThin Boyshort | Invisible Period Panties – Knix
Variants
15 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4597440 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Black - X-Small | CA$34.00 | Yes |
| 4597441 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Black - Small | CA$34.00 | Yes |
| 4597442 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Black - Medium | CA$34.00 | Yes |
| 4597443 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Black - Large | CA$34.00 | Yes |
| 4597444 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Black - X-Large | CA$34.00 | Yes |
| 4593505 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Patterned White - X-Small | CA$34.00 | Yes |
| 4593506 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Patterned White - Small | CA$34.00 | Yes |
| 4593507 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Patterned White - Medium | CA$34.00 | Yes |
| 4593508 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Patterned White - Large | CA$34.00 | Yes |
| 4593509 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Patterned White - X-Large | CA$34.00 | Yes |
| 4576843 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Baby Blue - X-Small | CA$34.00 | Yes |
| 4576844 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Baby Blue - Small | CA$34.00 | Yes |
| 4576845 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Baby Blue - Medium | CA$34.00 | Yes |
| 4576846 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Baby Blue - Large | CA$34.00 | Yes |
| 4576847 | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate - Baby Blue - X-Large | CA$34.00 | Yes |
Documents & Data
Customer Reviews
1 total1 reviews · out of 5
When you cough or sneeze!
Work well for small bladder leaks