Period Underwear · KnixIncontinence underwear is designed to provide assurance for those experiencing involuntary urine leakage. These specially crafted undergarments give reliable absorption capability, keeping you at ease and worry-free throughout the day. Bladder leaks must never limit your activities or cause embarrassment - with leak-proof underwear you can regain command over your bladder. Have peace of mind being aware that bladder leaks will not limit your lifestyle, thanks to the innovative technology of leak-proof underwear.