The Kid Sippy Cap converts any Kanteen Classic into a spill-proof, BPA-free, toddler-friendly Kid Kanteen. Every sippy cap comes with a polypropylene dust cover and handy attachment loop. Hook it on a backpack or throw it in a diaper bag, and head off with safe hydration for your little ones. - BPA Free, Food Safe Material - Strong-As-Steel Guarantee - In Business For Good - Removable valve for easy cleaning - Cap is spill-proof - Handy attachment loop - Dishwasher safe - Age: 6+ months