The Amp jacket from Surfanic keeps kids dry and warm. The 5K waterproof breathability rating is a good start, but it’s the 80g of Thermosoft insulation that also helps. A 'snap to pant' feature allows you to join Surfanic pants & jacket together, that keeps snow out and warmth in. The dry butt patch, keeps keep them dry when they have a sit down. Fully taped seams, snow cuffs and a snow skirt to top this off.