Knix designs comfortable wireless bras and leakproof seamless underwear.

Joanna Griffiths

Knix

Underwear

Clothing

These are my absolute favourite brand of period underwear. Every pair I own is so soft, comfortable, and well-fitting. The cuts and colours change a lot so it’s fun to check out their new products. Make sure to shop during their sales, the deals are always great.

I was pleasantly surprised by the underwear I purchased from Knix. I bought them from KT (their teen line), but I think the quality is the same as long as you size up a bit. They're a good replacement for pads, but I would be mindful of their capacity. Also, they're not reusable since you should wash them right away- it's a bit impressive/scary how much blood they hold.

I really like these for underwear to use on my period. I have it in black and they're really comfy and effective.

Bra: I wanted to love these bras. I got fitted in store, the quality is really good, however they always feel like they are riding up.
My friends swear by them. I am very petite, I think they may be more geared for regular sized/large breasted folks.
Period panties: incredible. Love love love them . Totally worth it

I have tried a couple of different period panties but I love Knix's cotton line the most! They are comfy and not too bulky and easy to clean. Love the size inclusivity and they have core and fun colors.

Great alternative to thinx. Looks cute and fits well, works just fine. 

Great product, the coverage of the leakproof bikini just isn't for me. The Catalyst Sports Bra, however, is a great purchase and passes the jump test. 

Great fit and fun colors! I do however wish the absorbent material went higher up in the front and back of their bikini as it just doesn't have enough coverage for me. Despite this, I do wear the leakproof bikini just around the start and end of my period just in case and it works quite well. I also own the Catalyst Sports Bra in black and quite like it! It does ride up a bit and cause some spill over on the sides but I think that's just because I have a weird bra size (32H) that is hard to find a fit for. I think the sports bra would work much better for those with a medium cup size. 

Knix is the one and only period underwear you need. No flashy ads, basic ass packaging and they're Canadian. They don't need to use gimmicks to sell you on their product, it's just that good. No complaints.

Its a good basic for any menstruating person.

I have several version in different fabrics and for different flow levels. They are comfortable and have so far been very reliable for menstrual care. I feel like the sizes run a little small, and (of course) they don't feel very breathable, so I definitely don't like to wear them the rest of the month. But it feels really nice to not worry about leaks and ruining clothing each month.

I have owned them for about a year. I soaked them in vinegar and water to "freshen" them up. They are a little bulky, and visible under leggings, but I just got for a longer top if needed. 

I own a 3 pack of the leak proof briefs. They fit true to size, definitely do not leak, and are comfortable. They are a game changer. 