Recycled Cotton Maxi Denim Skirt. Looking for that cool piece of sustainable clothing to keep your legs warm and fashionable this winter? Check out this Blue Recycled Cotton Maxi Denim Skirt from Reformation. This denim skirt is made with 80% regeneratively grown cotton and 20% recycled cotton. It’s design includes button closure, pocket details, unfinished hem, and zipper fly. Fuse with your favourite halter neck top for maximum affect