Name: Dog Carrier Backpack Material: Composite Waterproof Cloth + Loop Fleece Lining + Webbing + Buckle + Hardware Buckle Color: Black,Army Green,Red,Pink Size: S,M,L,XL Features: Waterproof Embracing Front Chest Backpack,Comfortable And Easy To Store One-piece Widened Shoulder Strap Design,Thickened Sponge Shoulder Straps,Comfortable and Breathable Stent Structure Filled With Thickened Pearl Cotton,Sturdy One-piece Buckle Design,Adjustable Length,Breathable Lining,Water Repellent Surface Bottom Bench Cut, and Tail Opening,Humanize Breakthrough Design: Product Can Be Fully Opened Pets Can Be Put On Quickly Without Lifting Their Legs When Standing On The Ground, Eliminating A Series Of Inconveniences Such As Zipper Card Pet Hair And Cumbersome Wearing Suitable For: Small dogs,Medium dog, and Cats Wearing Steps 1. First Put It On The Pet And Adjust It To The Appropriate Size 2. Then Back It To The Owner And Insert The Fixing Rope At The Waist 3. Finally Adjust The Length Of Your Shoulder Straps To Achieve The Most Comfortable Effect