3 HappyPuppy Cozy Cotton Dog/Puppy T-shirt Summer Cloth This sereis T-shirt are light, thick, great summer clothe. Read below for size reference. Please note: Measure your puppy before buy. Wash: Machine wash cold, separately, do not bleach, tumble dry, low warm iron if needed. Size: S--Length:9" Neck:10" Chest::14"; --------M--Length:11" Neck:9" Chest: 16" --------L--Length:14" Neck:15" Chest: 19"