KT by Knix Period-Proof Swim

Period-Proof High Rise Bikini Bottom

$40 ^CAD

Rated 3.7 out of 5

Based on 23 reviews

Double Scoop Bikini Top

$50 ^CAD

Rated 4.8 out of 5

Based on 6 reviews

Period-Proof Peekaboo One-Piece

$90 ^CAD

Rated 4.2 out of 5

Based on 5 reviews

Triangle Bikini Top

$50 ^CAD

Period-Proof Bikini Bottom

$40 ^CAD

Rated 4.0 out of 5

Based on 19 reviews

Period-Proof Sport One-Piece

$90 ^CAD

Rated 4.4 out of 5

Based on 17 reviews

Period Proof Swim FAQ

How does KT Period-Proof Swimwear work?

Our Swimwear features the same Patented Leak-Proof Technology as our Period-Proof Underwear with an additional thin layer of waterproof material for extra protection.

How much liquid do they hold?

KT Swimwear has a super discreet absorbent pad in the gusset liner that absorbs up to 3 tsps of blood, which equals about 3 tampons.

Do I need to wear a pad or tampon with KT Period-Proof Swimwear?

Nope. Every period is different though, and we recommend doing whatever makes you feel most confident. KT Swimwear can be worn alone without any additional period protection or used as backup protection on super heavy days with a tampon or menstrual cup.

What happens when you get in the water will blood leak out?

The layers in the gusset of the underwear work to trap and absorb blood. We want you to feel 100% confident in your KT Swimwear, so if it is a super heavy flow day, we suggest wearing a tampon or menstrual cup with your suit.

How do I wash the KT Swimwear?

Just machine-wash cold and lay flat to dry. Do not bleach.

Is it chlorine safe?

Definitely. KT Swimwear is seawater and chlorine resistant and has 50+ SPF protection!

What is a Virtual Fitting and how will it help me find my size?

We want you to find the perfect fit, so we’re here to help. You can schedule a 1:1 video chat with one of our team members from your home and get help finding the right fit. Book Now!

Can I return the swim if it does not fit?

Yes. As long as the sanitary strip and tag is still attached.

Can I wear these when I don’t have my period?

Absolutely. KT Swimwear looks and feels just like regular swimwear with a barely-there leak-proof liner.

KT Size	Hips	Kids Pant Size (Ages 7-13)	Teen Pant Size (Ages 14+)
XS	25” - 27”	7	---
S	28” - 30”	8-10	---
M	31” - 35”	12-14	00-2
L	36” - 40”	16-20	4-10
XL	41” - 44”	---	12-16
XXL	45” - 48”	---	18-20

KT
Size

Hips

Kids
Pant Size
(Ages 7-13)

Teen
Pant Size
(Ages 14+)

25” - 27”

---

28” - 30”

8-10

---

31” - 35”

12-14

00-2

36” - 40”

16-20

4-10

41” - 44”

---

12-16

XXL

45” - 48”

---

18-20

KT Size	Band	Hips	Kids Pant Size (Ages 7-13)	Teen Pant Size (Ages 14+)
XS	28"	25” - 27”	7	---
S	30"	28” - 30”	8-10	---
M	32"	31” - 35”	12-14	00-2
L	34"	36” - 40”	16-20	4-10
XL	36"	41” - 44”	---	12-16
XXL	38"	45” - 48”	---	18-20

KT
Size

Band

Hips

Kids
Pant Size
(Ages 7-13)

Teen
Pant Size
(Ages 14+)

28"

25” - 27”

---

30"

28” - 30”

8-10

---

32"

31” - 35”

12-14

00-2

34"

36” - 40”

16-20

4-10

36"

41” - 44”

---

12-16

XXL

38"

45” - 48”

---

18-20

Size	Bust	Hips
XS	27”	25" - 27"
S	30”	28" - 30"
M	34"	31" - 35"
L	37”	36" - 40"
XL	40”	41" - 44"
XXL	40”	45" - 48"

Size

Bust

Hips

27”

25" - 27"

30”

28" - 30"

34"

31" - 35"

37”

36" - 40"

40”

41" - 44"

XXL

40”

45" - 48"