Size 5/6…the fit is generous…could probably fit size 6/7 too. Smoke free/pet free. There is nothing cuter than a kid in a snowsuit. Set them up for the most comfortable snow day of their life with Burton kids' snowsuits, pants, and outerwear featuring GORE-TEX waterproofing, DRYRIDE™ moisture wicking technology, and down comfort. DRYRIDE two-layer stretch fabric [10,000mm/5,000g] is waterproof and breathable for outstanding weather protection; Nylon durability panels in seat and knees; Critically-taped seams lock out the elements