The pick of the pros for comfort, durability and safety. Single sliding ring saddle with individual leg straps. Models with sliding D-rings are designed for more freedom of movement. The front strap is reinforced with neoprene for extra durability. Individual leg straps are 2" nylon and feature slip on pads for comfort. Specify size: Small 34-42"; Medium 37-45"; Large 38-42"; or XL 44-48". To pick correct size, use your typical jeans waist size for comparison. Add an inch to 1-1/2 inches to your waist size to find which range you fall under. For sizing, also take the amount of clothing to be worn into consideration when using the saddle. For example, winter work with many layers of clothing will require a slightly larger saddle, perhaps 2-3 inches larger your usual waist size. This will compensate for the sum total of extra thickness caused by multiple layers of clothing needed when working in cold weather conditions.