Even when the big family ski trip gets hit with a blast of cold and snowy weather your little one will stay warm and dry as they take their first turns on the bunny hill in the Patagonia Snow Pile Bib Pants. These warm and waterproof pants offer tantrum-proof protection from the elements thanks to their H2No membrane and toasty synthetic insulation. The H2No technology works to keep out moisture of all kinds from wet snow to slush while the Thermogreen insulation fights the chill with all-day warmth.