The short Jesse Thermo Rainboot with soft and warm teddy lining is slightly warmer than your regular rain boot and is made for easy slip-on with cute animal details.Material Shell: 100% natural rubber Lining: 100% polyester Waterproof Low shaft Backstrap makes it easy to get on and off Free from harmful chemicals like phthalates and PAH Tested for slip resistance on wet and dry surface making sure your child keeps a good grip Tested for flexing of the sole to guar Note For the colder days ahead, add an extra wool sole to create warmth and enhance the comfort. Store the rain boots in a dark place without direct sunlight. Size Guide To find the right size for your child, please select the size according to your child’s foot lenght and add some extra space for the foot to grow. However, we recommend that you do not calculate too much room for growth in when determining the correct size for your child. Rain boots are naturally meant to fit a little looser than other shoes, but not too loose as it is not possible to strap the foot in.