snowboard bib pants for children with room-to-growâ„¢ system. nothing protects against snow and cold better than dungarees. the 2-layer dryride material keeps the inside dry, while a whopping 60 grams of thermacoreeco insulation provides cosy warmth. this insulation is made from over 90 % recycled fibres for a reduced environmental impact.with burton's room-to-growâ„¢ system, the legs can be lengthened by unravelling a small seam and will last a longer time.