" Features: 1.INSTANT COOLING EFFECT --- Our cooling shirt is made of special instant cooling fabric fiber, which is 3-4 degrees cooler than the normal fabric. Lightweight, soft and breathable. Keep your pet feeling cool in the hot summer 2.USEFUL --- In hot summer, you can put it into the freezer for a few minutes before using, it will add much more cooling like an air-conditioner, and within seconds your dog will get cooler. 3.CUTE PATTERN --- Special blue marble pattern to enhance your view of cooling. Tank Top Design, it is flexible on sizes, simply put it on your dog and let your dog enjoy the hot summer. Washable and Reusable, machine washable. 4.MULTI USE --- Easy to put on/off and convenient to store. Pet cooling vest suitable for outdoor/indoor use. It's perfect to take your pet to hot flashes, outdoor activities, indoor exercise, walking, hiking, and climb mountains. 5.AFTER-SALES SERVICE --- If you have any problem, please contact us immediately, we will help you solve it as soon as possible. Specifications: Size:XS-3XL Size,Neckline(cm),Bust(cm),Vest Length(cm) XS,24,36,27 S,32,44,31 M,36,54,38 L,40,60,43 XL,45,66,48 2XL,50,81,53 3XL,60,89,65 Use Method: 1. Wet the undershirt with water 2. Wring out 3. Wear on the pet 4. Please use in the company of the owner PS: If put in the water, twist dry, then put in the freezer for 10 minutes and then take out, the cooling effect is more clear includes: 1 X Vest