Crazystone's Front Shoulder Backpack Pet Legs Out Carrier Bags Free Your Hands, Convenient, Lightweight & Safe to Carry Your Pet Around for Biking, Hiking, Trip, Shopping and Many More Outdoor Activities Main material: Faux leather & Cotton,non-slip plastic pad on the shoulder tape Fully adjustable shoulder dog pet backpacks, With elastic and velcro on top.Legs and tail outside design.Allow front, back or side carrying of your pet Small:suitable for 2.2-4.4 pounds,Back Length 24 cm , Front 19.5 cm, Chest adjustment range: 32 cm -42 cm; strap width 3 cm, strap adjustable length 68-108 cm. Medium:suitable for 4.4-7.7 pounds,Back Length 27 cm , Front 21.5 cm, Chest adjustment range: 37cm -48cm; strap width 3 cm, strap adjustable length 68-108 cm. Large:suitable for 7.7-13.2 pounds,Back Length 31 cm , Front 22.5 cm, Chest adjustment range: 47cm -57cm; strap width 3 cm, strap adjustable length 68-108 cm.