The ZeeZ Cozy Fleece Vest is made from a soft, warm, fleece fabric to keep your dog warm during chilly winter days. The Cozy Fleece Vest is designed with a strong zip up the backline, keeping your dog's belly covered for extra warmth. The fabric is breathable and lightweight which is great for indoors and outdoors on cool days. Easy to fit. Machine washable. SIZES: S1 (19cm) S2 (19cm ) S3 (22cm) S4 (24cm) M1 (28cm) M2 (32cm) L1 (38cm) L2 (43cm) XL1 (48cm) XL2 (50cm) XX1 (53cm) XX2 (55cm) XX3 (63cm) See attached Size Guide.