The Bloodline Elite Dog Vest from Rig'Em Right Waterfowl offers the utmost protection for your most reliable hunting partner. The unique 3-layer construction of the upper material consists of 3mm neoprene gives a next to "skin" for warmth and comfort. A thin layer of foam for added flotation, and an outer layer of heavy-duty canvas for protection from brush and briers. Also features 5mm neoprene throughout the chest for flexibility and warmth and a sturdy braided handle to help you buddy back in the blind. This vest has a more athletic cut around the neck and between the front legs to provide better mobility without rubbing and bunching. Heavy duty zipper with velcro closure over zipper.Sizes: small, medium, large, X-large, & XX-largeChest Measurement*Small............24"Medium........26"Large............28"X-Large........30"XX-Large......33"*Measurement should be taken just behind the front legs, measuring the total distance around your dog's chest at the widest part.