Description: This dog training vest is made of high quality durable Nylon Fabric It has soft pad insert on the neck part to prevent chafing on your dog's neck, adjustable webbing for wearing stability Molle on both side for attaching other accessories such as magazine pouches, water bottles, food snacks, etc If you want this harness more personalized, you can modify it by adding accessories such as pouches, or water bottle holders. Necessary accessory for many activity: walking, hiking, or training. Specification: Cloth Available Size: M: total length: 41cm/16.14 inch; shoulder width: 34.5cm/13.58 inch; chest: 46-79 cm/18.11-31.10 inch; neck: 26-42 cm/10.24-16.54 inch L: total length: 48cm/18.90 inch; shoulder width: 38cm/14.96 inch; chest: 51-90 cm/20.08-35.43 inch; neck: 29-48 cm/11.42-18.90 inch XL: total length: 53cm/20.87 inch; shoulder width: 43cm/16.93 inch; chest: 56-99 cm/20.05-38.98 inch; neck: 31-51 cm/12.20-20.09 inch Size of Accessory Bag: Small: 17 x 11 x 7cm/6.69 x 4.33 x 2.76 inch Middle: 15 x 15 x 5cm/5.91 x 5.91 x 1.97 inch Big: 20 x 15 x 5cm/7.87 x 5.91 x 1.97 inch Material: Nylon 600D Colors: Tan & camouflage Package Includes: 1 Piece dog vest with an accessory bag Note: To ensure that you purchase the correct size, determine your dogs girth and length using a tape measure. Please allow 1-3mm error due to manual measurement, make sure you do not mind before you bid The colors may be different for the different display, please understand