The Pet Life Sporty Avalanche Dog Coat is made of 100% Lightweight and Windproof High-Grade Inner and Outer Polyester Fabrics leaving you with Less Bulk and Additional Warmth. Additionally this Dog Coat contains Thinsulate Thermal Heat Retention Technology as light inner shell for further added warmth. This Pet Coat Features a Attached Concealed Hood that actually 'Pops Out' of the collar. This Dog Jacket also Features Adjustable Straps along the backside. Size Small- back of neck to tail 10-12”