The hoods are solid black with waterproofing material and seam taping. Cinches at sides to compress around face, also a cinch in back and internal of hood. The hoods were removed from Under Armour jackets and should snap back into those UA collars. 10 inch zipper to attach to the back collar of your jacket/ski/rain coat of any brand with a compatible zipper half. Pictures of YKK zipper with slider on the hood. The snaps are designed to go on the collar (all are innie snaps). If you don’t have UA snaps, they could hang loose, be pinned or sewn in, or add Velcro. I have scores of these, leftover from a corporate gifting project where the hoods were removed. One size, 10” zipper, but I had to choose so I clicked M.