Perfect for your little explorer out in cold weather, Stonz Puffer Baby Booties keep their feet dry & warm even in the middle of winter. The Stonz Puffer baby booties use 3M thinsulate to keep them cozy in temperatures as low as -20ºC. Easy to get on and off for any impromptu backyard play session, these soft-sole non-slip shoes are perfect for early walkers that still have wobbly steps. Warm without being bulky, these versatile puffer booties were made for kids (and parents) on the go: lightweight for toting around in your diaper bag and with an extra-wide opening that easily covers shoes or liners