Water Blocked, Period Locked. Period-proof any swimsuit with UnderSwim: Period Undies for Swimwear. Available in G10-12(W4) to W18 for tweens, teens and adult women. Seamless design stays totally hidden under full bottom swimwear while absorbing the same as 3-4 tampons (30ml) of menstrual flow.
How to Wash Period Swim Undies
The care instructions for swim period underwear are just like how you look after our regular period undies. Check out the simple 3-steps needed to keep them in tip-top shape here.
Note though, that since swim undies come into contact with chlorine or salt water, it's crucial to rinse them out right after a swim to protect the waterproof coating and keep our swim underwear working like a charm.
