If you’re looking for kids' fleece onesies then you’ve come to the right place! Shop our range of baby waterproof onesies that are made for the outdoors. That’s right, Therm’s All-Weather Fleece Onesies are windproof and will keep even the littlest of toes warm! Sizes range from 6-24 months – just zip up and you’re good to go! The 2-way zipper makes for easy changing with parents in mind. With a variety of colors and patterns available, you’ll find the most stylish baby outdoor onesies at Therm. Featuring a rubberized coating on the knees & seat for extra durability – these toddler onesies can be worn on every adventure. The complete range is machine washable and dryer safe for your convenience.