The Pet Life ® Active 'Fur-Flex' Stretch and Quick-Dry Anti-Odor Fitness Yoga Dog Polo T-Shirt features a Medium-weight Superior-Stretch Diamond Stitched fabric that is specially treated to provide exceptional stretch resulting in extreme Mobility. This material is specially Micro-threaded that looks and feels like cotton and dries much faster and is superior in Breath-ability with full body Ventilation. The Fur-Flexed Polo is also medium-weight that cools and heats by maintaining performance body control perfect for year-round usage. This material also Features Memory-stitching and 4-Way Stretch Technology that moves better in every direction with a customized fit that's further than next to skin or Fur without the squeeze. Perfect for Fitness and Dog Yoga activity. Features Quick-Drying properties that dries really fast, while offering Anti-Odor technology that assists with odor causing microbes. This Dog Polo T-shirt provides UV Protection against the suns harmful rays and precisely fitted to help assist in containment or collection of shedded hairs. Design features Tex-lock and Dual stitching at every seem for durability with a Pull-Over design for easy on and off access with buttoned trims and a durable accented Rib-knitted fashion collar and sleeves with Reflective-Taping for added night visibility. Machine Washable. This style is part of our Pet Life ® Activewear Collection. Available in Multiple Sizes and Colors. SIZING SPECIFICATIONS - In (Inches) "Back" Length is from Neck to Tail - * See image chart for sizing approximation. EXTRA SMALL - Back - 9.3" Chest - 15.3" Neck - 11.3" Sleeve - 5.9" SMALL - Back - 11.3" Chest - 18.3" Neck - 12.3" Sleeve - 6.3 MEDIUM - Back - 14.3" Chest - 22.3" Neck - 14.3" Sleeves - 6.6" LARGE - Back - 18.3" Chest - 27.3" Neck - 16.8" Sleeve - 7.3" EXTRA LARGE - Back - 21.3" Chest - 32.3" Neck - 19.3" Sleeve - 8.1"