Knix
No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate
The No-Show Ultra-Thin High-Cut High-Waist Period Panty with moderate absorption is a reusable undergarment designed to manage menstrual flow, light urine leakage, and sweat. It features a silky stretch nylon-blend microfibre fabric, a patented 360 LeakSeal gusset trim for all-angle leak protection, and a moderate absorbency layer equivalent to 2.5 regular tampons. The high-waisted panty has a stretch waistband, seamless construction for a no-show look, and liquid-resistant fabric for spill prevention. Available at Simons and tax-free in Canada.
- Material
- Silky stretch nylon-blend microfibre
- Gender
- female
- Style
- high-rise, loungewear
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Specifications
Performance period panty with moderate absorbency, featuring patented LeakSeal technology and a seamless, no-show design for comfortable protection.
Patented 360 LeakSeal gousset, liquid-resistant fabric, moderate absorption (2.5 tampons), seamless construction, stretch waistband.
- Material
- Silky stretch nylon-blend microfibre
- Secondary
- elastane
- Style
- high-rise, loungewear
- Occasion
- everyday
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- silky stretch nylon-blend microfibre
- patented 360 LeakSeal gousset trim
- absorption level moderate (equivalent to 2.5 regular tampons)
- multi-purpose: periods, urine leakage, sweat
- liquid-resistant fabric for spill prevention
- high-waisted construction
- stretch waistband
- strategic seamless construction for no-show under clothing
- ultra-thin design
- high-cut leg opening
Product Insights
Knix's No-Show Ultra-Thin High-Cut High-Waist Period Panty (moderate absorption, $27 CAD) uses a bonded LeakSeal perimeter to prevent side leaks and spill-through, enabling a slim gusset that stays invisible under leggings with less bulk than competitors. It handles menstrual flow, bladder leaks, and sweat, holding 2–4 super tampons—but not for heavy flow or overnight use. Machine washable for up to 50 washes, it offers a true-to-seam-free fit at over 30% below Thinx's moderate panty, matching its absorbency with noticeably less weight.
Verified claims
- Leak prevention
- The LeakSeal trim's bonded perimeter seals the gusset edges, preventing side leaks even during sleep movement.
- Discretion
- The slim gusset enabled by LeakSeal is invisible under leggings and lighter than competitor moderate styles.
- Versatility
- The panty handles menstrual flow, bladder leaks, and sweat without extra bulk.
- Capacity
- Rated for moderate flow, but not intended for heavy flow; overnight protection is not guaranteed.
- Leak protection
- 360 LeakSeal trim and liquid-resistant fabric prevent edge leaks and spill-through.
- Durability
- Machine washable absorbent layers remain effective for up to 50 washes with proper care.
- Slim profile
- Matches moderate absorbency without the bulk of full-length layered gussets.
- Care instructions
- Machine wash cold with mild detergent; avoid fabric softener and bleach. Tumble dry low or air dry; high heat can damage the absorbent fibers.
- Seam-free construction
- Seamless construction eliminates the stitched waistband and leg bands that are prone to fraying, contributing to longer-term appearance.
- Price advantage
- $27 CAD — over 30% below Thinx’s moderate panty with LeakSeal.
- Comfort
- Matches Thinx’s absorbency (2.5 tampons) with noticeably less bulk and weight.
- Fit
- True-to-size Knix fit with seamless, low-bulk LeakSeal coverage.
- Sizing guide
- Knix's size guide recommends measuring the fullest part of the hips: XS fits 30-33 inches, S fits 34-37 inches, M fits 38-41 inches, L fits 45-47 inches, and XL fits 48-50 inches.
Product record
- Title
- No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate
- Brand
- Knix
- Price
- 27 CAD
- Availability
- In stock
Buying Guide
1 comparison · 13 sourcesUses
Moderate-absorbency period backup in an ultra-thin, no-show style
For wearing on period days when you want moderate backup — the listing puts this panty's absorbency at a level the brand describes as equivalent to 2.5 regular tampons, without the bulk. The 360 LeakSeal gusset trim is designed to help lock in leaks from every angle, even if you toss and turn. It's a no-show, ultra-thin cut, so it can work under everyday clothes.[3,5]
Everyday coverage for urine leakage
This ultra-thin, high-waist period panty is described by the retailer as suited to managing urine leakage, alongside periods and sweat. Its no-show, moderate-absorption design makes it an option for wearing under everyday clothes when you want discreet protection.[5]
Everyday underwear for staying dry from sweat
This Knix no-show high-waist panty is described by the merchant as suitable for absorbing sweat, alongside periods and light urine leakage. Its ultra-thin, no-show design makes it an option for everyday wear when you want moisture handled without visible lines.[5]
Everyday period wear with spill prevention in mind
This high-waist, high-cut period panty is made with liquid-resistant fabric that is intended for spill prevention. Its no-show, ultra-thin design is meant to sit discreetly under clothing, making it a style to reach for on days when you want moderate absorption with a low-profile feel.[2,5]
Discreet period protection under your clothes
This Knix no-show period panty is designed to be worn under outfits without showing lines or bulk. The merchant describes its seamless construction as giving a discreet look under clothes, and the packaging labels it ultra-thin, no-show, and leakproof in a high-cut, high-waist style. Moderate absorption suits days when you want period coverage that stays out of sight.[5,6]
Product comparison
Compared within this brand.
| No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate: Choose this if you want moderate-absorbency period underwear (stated as equivalent to 2.5 regular tampons) in an ultra-thin, no-show style for wear under clothes without bulk. It pairs a high-waist, high-cut silhouette in silky stretch nylon-blend microfibre with a patented 360 LeakSeal gusset trim that helps lock in leaks from every angle, even when you toss and turn—though this leak-locking effect is described as helping rather than guaranteed. It is machine washable and comes in X-Small to X-Large in Black and Green.[1,3,4,5] | Ultrathin No-Show High-Waist Period Panty Absorption: Moderate: Choose this if you want a high-waist, ultrathin no-show option for moderate-absorption days: it is rated at the equivalent of about 2.5 regular tampons and is presented as suited to periods, urine leakage, and sweat. It pairs a silky stretch nylon-blend microfibre with a patented 360 LeakSeal gusset trim that, per the brand, locks in leaks from every angle even if you toss and turn, plus seamless construction for a discreet look under clothes. Note that one reviewer of Knix period underwear reported the gusset lacked leak coverage and the lining felt rough for the first couple of wears.[7,8] | Ultrathin No-Show Boyshort Period Panty Absorption: Moderate: Choose this if you want a full-coverage boyshort period panty with moderate absorption, stated as equivalent to 2.5 regular tampons, that the brand says suits periods, urine leakage, and sweat. Its silky stretch nylon-blend microfibre, seamless construction, and 360 LeakSeal gusset trim are designed to lock in leaks from every angle while staying thin and discreet under clothes, and the gusset is cotton with carbon fiber rather than chemically treated for absorbency. Note it is a low- to mid-rise boyshort with a visible center-back seam and a slightly thicker front crotch panel, in sizes X-Small through X-Large and three colors (Black, Patterned White, and Baby Blue).[9,10,11,12,13] |
Image Analysis
3 images- 01
Product
Flat-lay front view of a high-waist, high-cut black panty with a wide straight waistband, curved high leg openings, a gently contoured front gusset seam, and small white printed marks near the inner leg openings.
- Overall silhouetteFlat-lay front-facing high-waist panty with a wide straight waistband across the top and pronounced high-cut curved leg openings that narrow toward the crotch.
1 region
x 0.07 · y 0.10 · w 0.86 · h 0.78 (high) - WaistbandWide uninterrupted waistband band with a smooth, single-layer appearance and clean top edge; no visible elastic casing or exposed elastic stitching.
1 region
x 0.10 · y 0.10 · w 0.80 · h 0.12 (high) - Leg openingsHigh-cut leg openings with a narrow, bonded or folded edge finish that follows a smooth curved line from waistband to crotch on both sides.
2 regions
x 0.06 · y 0.20 · w 0.40 · h 0.55 (high); x 0.54 · y 0.20 · w 0.40 · h 0.55 (high) - Front gusset seamGently curved seam line across the front crotch area forming a contoured pouch; seam appears flat and closely stitched or bonded.
1 region
x 0.27 · y 0.46 · w 0.46 · h 0.28 (high) - Interior gusset materialDarker, slightly textured inner gusset panels visible through the leg openings, appearing as a fine mesh or different knit from the outer fabric.
2 regions
x 0.22 · y 0.74 · w 0.12 · h 0.10 (high); x 0.66 · y 0.74 · w 0.12 · h 0.10 (high) - Small white printed marksSmall repeated white printed characters or marks located on the inner gusset panels near each leg opening; characters are too small to read clearly at this resolution.Partial
2 regions
x 0.20 · y 0.76 · w 0.12 · h 0.06 (medium); x 0.68 · y 0.76 · w 0.12 · h 0.06 (medium) - Fabric finishUniform matte black knit fabric across the main body with no visible sheen or pattern; surface appears smooth and finely textured.
1 region
x 0.10 · y 0.15 · w 0.80 · h 0.70 (high)
Other
Studio flat-lay product shot on a neutral light grey background with diffuse even lighting and minimal soft shadows; product centered and fully visible.
- Shot compositionCentered flat-lay composition showing the product laid flat on a pale grey background with consistent negative space around edges.
- Lighting and shadowsEven diffuse lighting with soft, subtle shadowing under the lower edges of the panty that indicates a slight elevation from the background.
- Image qualitySharp image with clear edge definition and visible fine texture; no motion blur or harsh highlights.
Colors
deep matte black· main fabric#0E0E0Every dark charcoal· inner gusset panels#1C1C1Dwhite· inner printed marks#EDEDED- Overall silhouetteFlat-lay front-facing high-waist panty with a wide straight waistband across the top and pronounced high-cut curved leg openings that narrow toward the crotch.
- 02
Product
Flat-laid black high-waist, high-cut panty shown from the rear side with a centered small white logo at the top waistband and a slightly darker gusset panel at the crotch.
- Overall shapeFlat-laid underwear with a wide, gently curved high waistband at the top tapering to a narrower crotch area; leg openings are high-cut forming an inverted triangular outline.
1 region
x 0.08 · y 0.06 · w 0.84 · h 0.88 (high) - Waistband detailWide continuous waistband band with clean edge and no visible elastic casing; top edge is gently curved.
1 region
x 0.12 · y 0.06 · w 0.76 · h 0.12 (high) - Center logo“Small white stylized 'X' logo positioned at the center of the waistband near the top edge.”
1 region
x 0.47 · y 0.06 · w 0.06 · h 0.05 (high) - Gusset panelDistinct gusset panel at the crotch area with a slightly different surface appearance and subtle seam lines connecting it to the front and back fabric.
1 region
x 0.34 · y 0.70 · w 0.32 · h 0.20 (high) - SeamsSubtle seam lines visible where the gusset meets the main body and along the inner leg openings; seams are low-profile and matched to fabric color.
1 region
x 0.28 · y 0.64 · w 0.44 · h 0.36 (medium) - Fabric finishSmooth, matte stretch fabric with minimal surface texture and slight creasing in places from laying flat.
Other
Product photographed flat against a neutral light gray background with soft directional lighting producing a faint shadow beneath the item; centered composition and full product visible.
- Background and stagingNeutral light gray background filling the frame, product centered and photographed flat with even lighting.
- ShadowingSoft shadow visible beneath the left and right lower edges of the product consistent with overhead lighting.
2 regions
x 0.06 · y 0.60 · w 0.20 · h 0.20 (medium); x 0.74 · y 0.60 · w 0.20 · h 0.20 (medium) - Image qualitySharp focus with even exposure and minimal compression artifacts.
Colors
matte black· main fabricbright white· waistband logo#EDEDED- Overall shapeFlat-laid underwear with a wide, gently curved high waistband at the top tapering to a narrower crotch area; leg openings are high-cut forming an inverted triangular outline.
- 03
Product
No internal product is visible; the image shows a retail hanging black cardboard box with a clear vertical window revealing a narrow strip of dark fabric inside and a pale pink product label printed on the box.
- Retail box geometryRectangular black cardboard retail box with a centered vertical clear window (rounded-rectangle) on the right half and a white plastic hanger tab extending from the top center.
1 region
x 0.04 · y 0.03 · w 0.92 · h 0.94 (high) - Clear windowNarrow vertical clear plastic window with rounded corners revealing a dark/black fabric strip inside the package; window is inset from box front and positioned on the right side.
1 region
x 0.66 · y 0.22 · w 0.19 · h 0.57 (high) - Pink label panelPale pink rectangular label printed on the box front at left-center with large brand wordmark at top and descriptive text below.
1 region
x 0.06 · y 0.20 · w 0.36 · h 0.36 (high) - Hang tabWhite plastic hanger tab protruding from the top center of the box with a rounded hook shape.
1 region
x 0.44 · y 0.00 · w 0.12 · h 0.12 (high) - Product visible fabricNarrow vertical band of dark or black fabric visible through the clear window; fabric surface appears smooth and slightly reflective.
1 region
x 0.69 · y 0.27 · w 0.12 · h 0.50 (high) - Panty icon on labelSmall simple line-drawn panty icon printed on the pink label near the lower right corner of the label panel.
1 region
x 0.30 · y 0.45 · w 0.06 · h 0.06 (medium) - Top circular stickerRound pale pink circle printed on the upper right of the box front containing a panty outline icon and size/quantity text.
1 region
x 0.72 · y 0.05 · w 0.20 · h 0.14 (high) - Surface finishBox front appears to have a matte black finish with minimal glare; the clear window shows minor reflections.
1 region
x 0.10 · y 0.10 · w 0.80 · h 0.80 (medium) - Large brand wordmark“Lowercase brand word 'knix' printed in large serif letters across the top portion of the pink label.”
1 region
x 0.08 · y 0.22 · w 0.30 · h 0.14 (high) - Label descriptive text block“Leakproof UltraThin No-Show French Cut Underwear”
1 region
x 0.08 · y 0.36 · w 0.28 · h 0.12 (high) - French descriptive text“Culotte coupe française trés mince invisible étanche”
1 region
x 0.08 · y 0.46 · w 0.28 · h 0.10 (high) - Absorbency statement“Moderate Absorbency Absorption pour flux moyenne”
1 region
x 0.08 · y 0.56 · w 0.18 · h 0.08 (high) - Top circle text“S|P”
1 region
x 0.78 · y 0.07 · w 0.06 · h 0.05 (medium) - Quantity text in circle“QTY | QTÉ : 1”
1 region
x 0.78 · y 0.12 · w 0.12 · h 0.05 (high)
Packaging
Black rectangular retail hanging box with a pale pink label panel, a round size/quantity sticker, and a vertical clear window showing product fabric.
- Box front color and layoutMatte black front with a left pale pink rectangular label and a round pale pink sticker at upper right; a vertical clear window sits to the right of the label.
1 region
x 0.04 · y 0.03 · w 0.92 · h 0.94 (high) - Label brand wordmark“Large 'knix' wordmark printed on the pale pink label panel.”
1 region
x 0.08 · y 0.22 · w 0.30 · h 0.14 (high) - Label product copy“Leakproof UltraThin No-Show French Cut Underwear”
1 region
x 0.08 · y 0.36 · w 0.28 · h 0.12 (high) - French copy on label“Culotte coupe française trés mince invisible étanche”
1 region
x 0.08 · y 0.46 · w 0.28 · h 0.10 (high) - Absorbency icon and textThree droplet icons above the text 'Moderate Absorbency Absorption pour flux moyenne' on the lower left of the pink label.
1 region
x 0.06 · y 0.56 · w 0.18 · h 0.08 (medium) - Round sticker text“QTY | QTÉ : 1”
1 region
x 0.78 · y 0.12 · w 0.12 · h 0.05 (high)
Other
Studio-style product photograph on a neutral light grey background with soft even lighting and subtle shadow; image is centered and cropped to include the full hanging box.
- Background and stagingNeutral light grey seamless background with the box centered on the frame and a faint shadow around the lower edge.
- Shot compositionFront-on product shot with the box facing the camera; hanger tab visible at top and box edges nearly parallel to image borders.
1 region
x 0.04 · y 0.03 · w 0.92 · h 0.94 (high) - Lighting and reflectionsEven diffuse lighting with minimal specular highlights; the clear window shows small reflections of the studio lights.
1 region
x 0.66 · y 0.22 · w 0.19 · h 0.57 (medium)
Colors
matte black· box frontPackaging#0E0E0Dpale pink· label panelPackagingpale pink· round stickerPackagingdeep black· visible fabric#0E0E12white· hanger tabPackaging#F0F0F2- Retail box geometryRectangular black cardboard retail box with a centered vertical clear window (rounded-rectangle) on the right half and a white plastic hanger tab extending from the top center.
Variants
10 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4722733 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Black - X-Small | CA$27.00 | Yes |
| 4722734 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Black - Small | CA$27.00 | Yes |
| 4722735 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Black - Medium | CA$27.00 | Yes |
| 4722736 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Black - Large | CA$27.00 | Yes |
| 4722737 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Black - X-Large | CA$27.00 | Yes |
| 4593486 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Green - X-Small | CA$27.00 | Yes |
| 4593487 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Green - Small | CA$27.00 | Yes |
| 4593488 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Green - Medium | CA$27.00 | Yes |
| 4593489 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Green - Large | CA$27.00 | Yes |
| 4593490 | No-Show Ultra-Thin High-Cut High-Waist Period Panty Absorption: Moderate - Green - X-Large | CA$27.00 | Yes |