ARMORFlex® Challenger II VTEK® Wither Relief Adjusta-Fit® Surcingle Turnout SheetThis waterproof turnout sheet is the only one your horse will need, with its superior fit and durability. This blanket was formerly known as the StormShield VTEK Evergreen Turnout Sheet Specialty fits to keep your horse comfortable Patented VTEK pressure free wither relief design extends 6 8" onto the mane Patented Adjusta Fit system offers 2" of adjustability around the neckline to fit any horse, very useful for young and narrow chested horses