Patagonia's Better Sweater Vest is easy to wear and provides an extra layer without all the bulk. This vest combines the easy care of polyester fleece with the aesthetic of wool. It is made with knitted, cross-dye Better Sweater® fabric dyed with a low-impact process that significantly reduces the use of dyestuffs, energy and water compared to conventional dyeing methods. Fair Trade Certified™ sewing. Trust us, a Better Sweater Vest is an essential this winter.