Size 3XL: chest 27.6 in / 70 cm, neck 17.3 in / 44 cm, back 21.7 in / 55 cm snug cut—if your dog is between sizes, order the larger one and always use the chest measurement as the final guide. The shirt is sewn from 95 % soft cotton and 5 % spandex so air can circulate, moisture is pulled away from the coat, and the fabric stretches with every sprint, stretch or roll. Long sleeves shield elbows and forelegs from thorns, claws, insects and post-op stitches, while the elastic hem lets you slide the tee on in seconds and keeps it in place during zoomies. Lightweight enough for summer yet cozy as a base layer in winter, the shirt also cuts down on seasonal shedding, works as calming sleepwear and stops dogs from licking wounds. Whether the day calls for couch naps, sunny walks, park play, hiking, camping, travel, training or beach runs, this single garment keeps your dog comfortable, clean and protected all year round.