The shape and cut means the Phantom fits waist sizes from 28 inches to 40 inches. If your waist size is up to 36″, you should select the Regular. If you are a 36″ and larger, you should select the XL. The Comfort Channels provide all day, unsurpassed comfort with easy to use high, medium, and low support settings. If you like lower back support, move to the “high” Comfort Channel. If you like more support under your seat, move to the “low” Comfort Channel. The UtiliBridge is the first of it’s kind constructed with Dynalite. Dynalite is perfect for outdoor applications. With nearly 30 inches of on-the-fly adjustability, everyone can find their saddle hunting sweet spot. There’s no metal, no bulk, and it’s the strongest adjustable bridge ever made. The Phantom has re-engineered lineman loops to make them more user friendly and even stronger than ever. The large patent pending lineman loops are easier to find and use in the dark, even with gloves on your hands during the late season. The waist belt on the Phantom is an ultra-wide, ultra-adjustable design. The simplified belt makes one-handed belt cinching a breeze. The all-new floating design means you have unlimited positioning options for your buckle.