This economical version features gusseted shoulders, fleece withers, bias black surcingles and trim, tail flap, stainless steel hardware and front buckles. The outer shell is a 600-denier polyester Baker® plaid with an 8" wide black polyester strip along the bottom of each side of the sheet between the Baker® plaid and trim. A waterproof/breathable membrane bars water penetration yet allows water vapor from perspiration to pass through to the outside.