This Reima breathable wool all-in-one is a premium mid-layer for toddlers, made from 80% wool and 20% polyester to deliver natural warmth and moisture control. This thermal jumpsuit has a brushed interior that feels soft against skin and comfortable ribbed cuffs for a secure fit during active play. This woolen onesie features a full-length zipper with a chin guard for quick, fuss-free dressing without rubbing at the neck. This design uses thin, flat seams to prevent chafing and works smoothly as an insulating layer under outerwear for outdoor adventures.