Castelli riparo rain jacketthis riparo rain jacket is for waterproof protection in a small package the 25 layer fabric features a durable woven outer shell with a waterproof polyurethane membrane rated at 10 000 mvtr this jacket packs into a small size that easily sits in a jersey pocket ready to give you waterproof shelter castelli has given this jacket a high neck a long tail and a stuff pocket for when you need to carry it features25 layer torrent iv fabric with polyurethane membrane