About this article ATTENTION: Measure your animal (neckline, chest and back) and follow the size chart before choosing your product. As your pet grows, choose one size larger. Soft cotton - Solid color and classic style - With kangaroo pocket - Superior quality - Machine washable. XS: Neck: 20 cm - Chest: 28 cm - Back length: 18 cm - S: Neck: 21 cm - Chest: 32 cm - Back length: 22 cm. M: Neck: 24cm - Chest: 38cm - Back length: 26cm - L: Neck: 28cm - Chest: 44cm - Back length: 30 cm. XL: Neck: 33 cm - Chest: 51 cm - Back length: 35 cm - XXL: Neck: 37 cm - Chest: 59 cm - Back length: 40 cm.