The Toddler Patagonia Nano Puffer-Alls Bib is a lightweight insulation piece for layering during cold weather activity. The 100% recycled polyester ripstop shell has been treated with a DWR for light moisture resistance, and a 60g layer of PrimaLoft Gold Insulation Eco provides the warmth. Designed for cool to cold weather camping, family hiking, and even a little bit of backyard play in the snow. These bibs are built for layering, so add them over fleece and let the fun begin.