Material:Nylon+Polyester<br> 4 Colours:Red/Yellow/Black/Blue<br> 5 Sizes:M-3XL<br> Features:<br> Durable nylon surface with soft Waterproof padded,comfortable to wear<br> Reflective design,more safe to use at night<br> Neck with wider padding strips, soft, breathable, tear resistant and chest areas for safety and comfort all the time<br> This dog weight pulling harness is an amazing training tool to improve your dogs behavior and develop your dogs muscle and strength in a right way without hurting your dogs,it cana be used by pet dogs or by work dogs<br> Package Include:1x Weight Pulling Harenss<br> Size Details:<br> M:Neck 11.5-15.5"(29-40cm);Chest(Girth) 19.5-27.5"(50-70cm);Back 19-22.5"(48-57cm)<br> L:Neck 15-19"(38-48cm);Chest(Girth) 23.5-31.5"(60-80cm);Back 19.5-25"(50-64cm)<br> XL:Neck 18-21"(46-54cm);Chest(Girth) 27.5-35.5"(70-90cm);Back 21.5-26"(55-66cm)<br> 2XL:Neck 21-25"(54-64cm);Chest(Girth) 31.5-39.5"(80-100cm);Back 23.5-28.5"(60-73cm)<br> 3XL:Neck 25-29"(64-74cm);Chest(Girth) 35.5-43.5"(90-110cm);Back 25-30"(63-76cm)