Up to 50% off All Underwear
From ultra-soft fabrics and seamless styles to super absorbent underwear, you’re covered 24/7/365. Knix period underwear and pads are now sales tax-free in Canada.*
Top Sale Picks
Light Leakproof No-Show French Cut
51% off
Color: Pink Lemonade, limited edition
Light Leakproof No-Show Bikini
40% off
Color: Cherry, limited edition
Luxe Modal Leakproof Sleep Boxer
40% off
Color: Dark Cherry, limited edition
Light Leakproof No-Show Thong
43% off
Color: Cavassa
Light Leakproof No-Show High Rise
41% off
Color: Glacier, limited edition
Ultra Leakproof Zones+ High Rise
15% off
Color: Warm Sand
Essential Lace Bikini
50% off
Color: Daylight, limited edition
Light Leakproof UltraThin Thong 3-Pack Gift Box
50% off
Color: Shine Bright/Cherry/Olive, limited edition
Lightest Absorbency
Lightest periods, spotting, sweat & discharge - absorbs about 0.5-1 regular tampon worth.
Light Leakproof No-Show Thong
43% off
Color: Cherry, limited edition
Light Leakproof No-Show Bikini
40% off
Color: Cherry, limited edition
Light Leakproof Gossamer Lace French Cut
41% off
Color: Dark Cherry, limited edition
Light Leakproof No-Show Boyshort
15% off
Color: Midnight
Light Leakproof No-Show High Rise
41% off
Color: Glacier, limited edition
Leakproof Thigh Saver® 6”
40% off
Color: Leopard Print, limited edition
Light Absorbency
Light periods, backup protection & sweat - absorbs about 1-3 regular tampons’ worth.
Light Leakproof UltraThin Thong 3-Pack Gift Box
50% off
Color: Shine Bright/Cherry/Olive, limited edition
Light Leakproof No-Show French Cut
51% off
Color: Pink Lemonade, limited edition
Leakproof UltraThin No-Show French Cut
40% off
Color: Mushroom, limited edition
Leakproof Contour Thigh Saver® 6”
15% off
Color: Warm Sand
Medium Absorbency
Medium periods, light bladder leaks & sweat - absorbs about 2-3 super tampons’ worth.
Leakproof No-Show Thong
40% off
Color: Rose Water
Leakproof UltraThin No-Show French Cut
40% off
Color: Black Shimmer, limited edition
Leakproof UltraThin High Rise 3-Pack Gift Box
50% off
Color: Shine Bright/Cherry/Olive, limited edition
Leakproof UltraThin No-Show Bikini
15% off
Color: Warm Sand
Leakproof Cotton Bikini
15% off
Color: Pepper
Leakproof UltraThin Bikini 3-Pack Gift Box
50% off
Color: Shine Bright/Cherry/Olive, limited edition
Astrology Collection Leakproof UltraThin Bikini
42% off
Color: Capricorn, limited edition
Leakproof UltraThin No-Show High Rise
15% off
Color: Midnight
Leakproof Cotton High Rise
15% off
Color: Pepper
Leakproof Cotton Boybrief
15% off
Color: Rose Water
Luxe Modal Leakproof Sleep Boxer
40% off
Color: Dark Cherry, limited edition
Heavy Absorbency
Heavy periods, overnight protection & light bladder leaks - absorbs about 3-6 super tampons’ worth.
Super Leakproof® No-Show Boyshort
15% off
Color: Warm Sand
Super Leakproof® No-Show French Cut
41% off
Color: Mushroom, limited edition
Super Leakproof® No-Show High Rise
15% off
Color: Midnight
Ultra Absorbency
Extra heavy periods, overnight protection & light bladder leaks - absorbs about 7-9 super tampons’ worth.
Ultra Leakproof Zones+ High Rise
15% off
Color: Warm Sand
Zero Absorbency
Everyday wear with no leakproof protection - zero absorbency.
Essential No-Show Thong
15% off
Color: Rose Water
Essential No-Show Thong 5-Pack
40% off
Color: Blue Multi, limited edition
Essential No-Show Cheeky
40% off
Color: Flower Flourish, limited edition
Essential No-Show Bikini
15% off
Color: Rose Water
Essential Lace Bikini
50% off
Color: Daylight, limited edition
Essential No-Show Bikini 5-Pack
40% off
Color: Blue Multi, limited edition
Essential No-Show Boyshort
15% off
Color: Warm Sand
Essential Lace Boyshort
40% off
Color: Emerald, limited edition
Essential Lace Boyshort 3-Pack
40% off
Color: Pink Sorbet/True Blue/Pink Crush, limited edition
Essential No-Show High Rise
15% off
Color: Rose Water
Essential No-Show High Rise 5-Pack
40% off
Color: Blue Multi, limited edition
Up to 50% off Teen Period Underwear
Moisture-wicking, odor-crushing, life-changing leakproof undies.
Teen Super Leakproof® Sleepover Short
40% off
Color: Guava, limited edition
Teen Leakproof UltraThin No-Show Bikini 3-Pack
30% off
Color: Blueberry/Holly/Galaxy, limited edition
Teen Super Leakproof® No-Show Bikini 2-Pack
41% off
Color: Cosmo/Raspberry, limited edition
Teen Light Leakproof No-Show Bikini
15% off
Color: Night Sky, limited edition
Teen UltraThin Bikini: Holiday 3-Pack
30% off
Color: Comet/Atmosphere/Starstruck, limited edition
Teen Light Leakproof No-Show Boyshort 3-Pack
30% off
Color: Ruby/Sugar Plum/Posy, limited edition
Teen Super Leakproof® No-Show Bikini
31% off
Color: Perfect Pear, limited edition
Teen Super Leakproof® No-Show Boyshort
31% off
Color: Perfect Pear, limited edition
Teen Leakproof UltraThin No-Show Boyshort 3-Pack
30% off
Color: Ruby/Sugar Plum/Posy, limited edition
Teen Light Leakproof No-Show Bikini 3-Pack
40% off
Color: Lucky Star/Berry/Cosmo, limited edition
Teen Light Leakproof No-Show Boyshort 2-Pack
40% off
Color: Lucky Star/Berry, limited edition
Teen Super Leakproof® No-Show Boyshort 2-Pack
41% off
Color: Cosmo/Raspberry, limited edition
From ultra-soft fabrics and seamless styles to super absorbent underwear, you’re covered 24/7/365.
Your leakproof questions, answered.
