Size: There Is 4 Size You Can Choose. S - Neck Girth 11.4", Chest Girth 15.7", Back Length 11" , M - Neck Girth 11.8", Chest Girth 16.5", Back Length 12.4" , L - Neck Girth 13.4", Chest Girth 20.9", Back Length 14.2" , Xl - Neck Girth 13.8", Chest Girth 21.8", Back Length 14.9". Please Measure Your Dog Before Ordering. Note: This Dog Recovery Shirt Is Not Suitable for Large Dogs. Material: This T-Shirt Is Made Of Special Breathable Stretch Fabric, Fast-Drying, Waterproof, Soft, and Has A Good Stretch to Fit Your Dog. It Keeps Your Dog Warm In The Water and Cools On Hot Days. Practicality: As A Recovery Suit, It Protects The Dog'S Post-Operative Dressing Area, Protects Daily Wounds, Skin Breakage, and Hair Loss From Licking. As A Training Suit, It Is Lightweight, Breathable, Quick-Drying, and Does Not Absorb Water, Keeping Your Dog Clean Outdoors. What'S More, This Suit Can Give Your Dog Security and Let Your Dog Release Anxiety. Easy to Put On/Off: The Back Of The Suit Is Designed with A Zipper, You Just Need to Put The Dog'S Limbs Into The Sleeves Of The Suit and Zipped It Up. You Don'T Have to Worry About Dog Hair Being Stuck Out By The Zipper, with Padding Inside, It'S Safe. Washing and Care Tips: ItS Made Of A Special High Stretch Fabric That Also Has A Certain Degree Of Dirt Resistance, So You Need to Avoid Solarization and Machine Washing, Which May Reduce The Life Of The High Stretch Fabric. You Can Simply Hand Wash and Air Dry Naturally. Do Not Wash In Particularly Hot Water. Special Note: Please Stick The Magic Hooks to Each Other Before Washing to Avoid Damaging The High-Stretch Fabric.