Columbia Youth Unisex Snowslope III Bib Spring Yellow Size M New With Tags WATERPROOF BIBS: Crafted from durable and waterproof nylon, these bibs are ready for the slopes and snow play. 85% RECYCLED INSULATION: You'll feel good and warm knowing these bibs incorporate Microtemp XF II insulation made from 85% recycled polyester. EXTENDED FIT: Designed for youth, these snow bibs feature our OUTGROWN grow system which makes it easy to extend the length of the inseam as they get taller.