Size & Fit Allows plenty of room for layering. Full zip front; elasticized waist; adjustable straps for a secure fit. Why We Love Them Customer favorites, our kids’ snow bibs are rugged enough to stand up to outdoor play, yet still light enough that they won’t slow kids down. Adjustable shoulder straps and an elastic waist so kids can extend the fit as they grow. Fabric & Care Wind- and water-resistant 100% polyester dobby. 3M™ Thinsulate™ Insulation polyester. 100% nylon taffeta lining. Machine wash and dry. Construction Internal nylon gaiters keep snow and ice out. Reinforced at the knees, seat and cuffs. Zip vents fit easily over boots for faster on/off.