Waterproof seam-taped mitt featuring our most durable, lightweight Helium Diamond Fuse fabric. Expanding on the all-time best-selling Helium Collection, the Helium Rain Mitts are the fully seam-taped, waterproof mitts infused with durable lightweight Diamond Fuse technology. Built-in a versatile size that fits several different types of liners, these are the easiest pair of mitts to stow in your pack or pocket to be prepared for any downpour - without any added weight or bulk.