Product Details + 18-oz Polartec 86% polyester (80% recycled)/14% spandex double-faced fleece provides maximum warmth Designed to be worn over a sock for extreme winter-fishing conditions Can also be worn as a volume-adding companion piece with seamless wader booties Fair Trade Certified sewn 142 g (5 oz) 18-oz Polartec 86% polyester (80% recycled)/14% spandex double-faced fleece. Fair Trade Certified sewn