The Pet Life ® Active 'Warm-Pup' Stretchy and Quick-Drying Fitness Dog Yoga Warm-Up Tracksuit is Next-Generation performance unleashed. Features a specially formulated Ultra-Lightweight Micro-knit system that maintains body temperature and features 4-way Stretch technology that moves better in every direction for premium Comfort and Mobility with strategic ventilation points for Breath-ability. Perfect for Performance Fitness and Dog Yoga activities, Features a tapered and streamlined fit that's also expandable with stretch-banded lining that extends additional room for growth. This fabric features Quick-Drying properties that repels perspiration and dries really fast while offering Anti-Odor technology that assists with odor causing microbes. Offers UV Protection against the suns harmful rays and fitted to help assist in containment or collection of shedded hairs. Design features Dual Reinforced stitching at every seam for durability and a leash-slit along the backside, a fashion collar and a zipper underneath for convenient on and off access 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" Chest - 14" Neck - 11.5" Sleeve - 4.4" SMALL - Back - 11" Chest - 17.4" Neck - 13" Sleeve - 4.8 MEDIUM - Back - 13.8" Chest - 20.5" Neck - 14.5" Sleeves - 5.5" LARGE - Back - 17.8" Chest - 25" Neck - 16.8" Sleeve - 6.6" EXTRA LARGE - Back - 22.5" Chest - 31" Neck - 19" Sleeve - 7.6"