X-LARGE FITS DOGS 100 LBS TO 130 LBS - Chest Measuring a Diameter 35" - 42" HI VIS BLAZE ORANGE - Superior visibility in both urban and rural areas. The blaze orange dog vest keeps your pup visible to you and others up to 500 feet away, maintaining your line of sight and helping to prevent automobile and hunting accidents on or off leash. DURABILITY Water-resistant 300D Oxford Weave and reinforced stitching ensures a more durable dog reflective vest able to withstand the activity of a playful pup in most conditions. HARNESS COMPATIBLE Void of bulky material, our lightweight dog vest can easily be worn under any dog harness you choose with comfort and style. UTILITY STRAP INCLUDED - For convenience, we've added a utility strap to the side of the vest. Hang a poop bag or carabineer to hold lightweight accessories on walks and hikes.