
Knix
Ultrathin No-Show Boyshort Period Panty Absorption: Moderate
This is the Knix UltraThin No-Show boyshort period panty, a moderate-absorption garment (equivalent to 2.5 regular tampons) designed for menstrual flow, light bladder leaks, and sweat. It features a patented 360 LeakSeal gusset trim for multi-angle leak protection, a silky stretch nylon-blend microfibre with liquid-resistant fabric, and a seamless boyshort cut for a discreet fit under clothing. Main materials are 77% nylon and 23% Lycra XTRA LIFE spandex, with layered gussets of cotton, polyester, spandex, and carbon fiber, plus a polyurethane coating.
- Material
- Silky, stretch nylon-blend microfibre
- Gender
- female
- Style
- casual
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Color
Size
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 offers moderate absorbency (equivalent to 2.5 tampons) with patented 360° LeakSeal technology that prevents side leaks from periods, urine, and sweat while remaining breathable and no-show under clothing. Its dual-purpose design suits light-to-moderate flow and light bladder leaks, but not heavy flow. The carbon-cotton gusset neutralizes odor, and Lycra XTRA LIFE spandex ensures durability and shape retention. At 34 CAD, it undercuts competitors like Modibodi while matching Thinx's entry price, balancing invisible everyday wear with reliable leak protection.
Verified claims
- Leak seal
- Patented LeakSeal: polyurethane barrier and bonded edges prevent side leaks from all angles.
- Breathability
- Microporous polyurethane membrane blocks fluid but allows sweat vapor to pass.
- Dual purpose
- Designed for both periods and light bladder leaks.
- Layer construction
- Double polyester cores, carbon-cotton face, and TPU barrier enable moderate absorbency for light-to-moderate flow in a thin gusset.
- Leakproof trim
- Bonded 360° trim seals needle holes and locks in leaks from periods, urine, and sweat.
- Care and replacement
- Preserve moderate absorbency by avoiding fabric softener; replace when protection drops.
- Absorbency
- At 2.5 tampons capacity, it matches Thinx moderate but is lighter than Modibodi moderate.
- Materials
- Outer knit: 77% nylon/23% Lycra XTRA LIFE; gusset: 86% cotton/10% spandex/4% carbon fiber; coating: 100% PU.
- LeakSeal technology
- Patented 360° LeakSeal trim prevents edge wicking.
- Use case
- Suited for light-to-moderate flow and light bladder leaks; heavy flow needs a higher-absorbency style.
- Durability
- Lycra XTRA LIFE spandex resists bagging 10x longer than standard spandex.
- Odor control
- Carbon cotton gusset neutralizes odor naturally without chemicals.
- Leak prevention
- Bonded LeakSeal edge seals needle holes; dual-core gusset resists saturation.
- No-show
- Seamless and laser-cut edges ensure no-show; shape holds with washes; individual fit may vary.
- Care instructions
- Wash cold in a mesh bag and lay flat to dry; never use bleach or fabric softener.
- Replacement signal
- Replace when absorbency no longer holds through expected use.
- Period and leak use
- Works for light-to-moderate periods and light bladder leaks.
- Gusset technology
- 360 LeakSeal gusset seals edges, breathes, and controls odor.
- Care and longevity
- Wash in a mesh bag without softener and replace when absorbency declines.
- Invisibility
- Buyers report no visible panty lines under leggings or tight clothing.
- Thickness
- Ultrathin four-layer gusset holds moderate absorbency without bulk.
- Shape retention
- Lycra XTRA LIFE spandex resists sagging and maintains fit after washing.
- Market price
- At $34 CAD, this boyshort costs roughly half the Modibodi Classic Boyshort and sits at Thinx's entry range.
- Leak protection
- Patented 360 LeakSeal trim seals needle holes; four-layer gusset blocks both period and bladder leaks.
- Everyday performance
- Moderate 2.5-tampon capacity; best for light-to-moderate days with breathable, invisible fit.
- Usage context
- Carbon cotton gusset controls odor effectively for everyday wear and light activity.
Product record
- Title
- Ultrathin No-Show Boyshort Period Panty Absorption: Moderate
- Brand
- Knix
- Price
- 34 CAD
- Availability
- In stock
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.
Documents & Data
Customer Reviews
1 total1 reviews · out of 5
When you cough or sneeze!
Work well for small bladder leaks