Ronstan's CL10 Sailing Trapeze Harness is comfortable and highly adjustable, so you can concentrate on sailing fast.The CL10 Racing Trapeze Harness delivers good back support with anatomically-shaped shoulder straps with 3D mesh padding and lower back cushioning for maximum comfort.With a sleek, low profile, it won't snag on gear. Six-point locating system for the harness hook allows for multiple adjustment points, so you can get the fit just right, with a stainless steel tube spreader bar.Sizing (based on garment size, not person size)Small fits less than 30" (76cm) waist sizeMedium fits 30"-32" (76-81cm) waist sizeLarge fits 32"-34" (81-86cm) waist sizeExtra Large fits 34"-36" (86-92cm) waist sizeXXLarge fits over 36" (92cm) Waist size