The Hayden Insulated Pant combines 20,000MM waterproofing and 8,000G breathability with 100% recycled polyester 4-way stretch fabric. The 80 grams of PrimaLoft® Recycled Silver Insulation provides warmth in chilly conditions while a stain and oil repellent treatment, fully taped seams, and a DWR boot gaiter offer maximum protection. The Owlet-Let-Out System allows for a 2-inch leg length extension to ensure your young rider can wear these pants for multiple seasons as they grow.