Thinx vs Knix vs ONDR A Comparison Guide ONDRwearLeak-proof underwear is designed to provide protection for those experiencing involuntary urine leakage. These specially crafted undergarments grant reliable containment capability, keeping you comfortable and stress-free throughout the day. Bladder leaks should never limit your activities or cause embarrassment - with leak-proof underwear you can easily regain control over your urinary system. Feel confident being aware that bladder leaks won't ever restrict your freedom, thanks to the innovative design of absorbent underwear for bladder leaks.