Each pair is designed with a dual layer design that ensures moisture management, odour inhibiting technology and stretchy cotton designed to feel like real undies. So whether or not they are ready for potty training, these are the perfect undies to have on hand just in case. And with a range of sizes available, it won't be hard to find the perfect fit for their wee little bodies! 60, The Bonds Whoopsies Toilet Training Undies help littlies feel like a "big kid". They're the perfect go-anywhere training undies to help them graduate from nappies to regular undies with confidence.