The Pet Life ® Reflecta-Sport Windbreaker Dog Raincoat Jacket is Adjustable in 3 areas by the sleeves hood and Tail-Area. This Dog Coat Features an Adjustable and Removable Hood. This Dog Jacket additionally Features a Reflective strip along the Backside for added safety while dog walking at night. Contains a Lightweight Fleece inner lining. Great for Year-Round. Features a Leash-Slit Holder Along the Backside and Belly Velcro for Easy On and Off access.Sizing Guide: Measure From Back of Neck to Tail area ( In Inches)8 : EXTRA SMALL10-12 : SMALL14-16 : MEDIUM