ADJUSTABLE SIZES: Nylon straps for easy size adjustment for x-small, small and medium dogs. For your dog’s best fit, please refer to our size chart for the best measurement and weight.HASSLE-FREE CUSTOM FIT COMFORT CHEST PLATE: Our step-in harness provides ultra comfort on dog’s chest area. No more struggling or pulling so that your dog is ready for walking in seconds. Made with breathable high density air mesh and provides efficient air flow throughout the chest area. Cross-stitched nylon straps for optimal tension distribution and protection against neck injuries. Reflective yellow piping for additional safety in darkness.DURABLE & HIGH QUALITY MATERIALS: Fray resistant 100% high quality dense 3mm thick air mesh material. Durable fully welded two D-Ring for quick and easy leash attachment. Durable plastic side buckle quickly clicks shut and stays put and ensure extra security.REDUCES STRESS: All of DOCO harnesses are designed to reduce stress, allowing weight to be distributed evenly through the chest and shoulders during walks. ADJUSTABLE SIZES: Nylon straps for easy size adjustment for x-small, small and medium dogs. For your dog’s best fit, please refer to our size chart for the best measurement and weight.HASSLE-FREE CUSTOM FIT COMFORT CHEST PLATE: Our step-in harness provides ultra comfort on dog’s chest area. No more struggling or pulling so that your dog is ready for walking in seconds. Made with breathable high density air mesh and provides efficient air flow throughout the chest area. Cross-stitched nylon straps for optimal tension distribution and protection against neck injuries. Reflective yellow piping for additional safety in darkness.DURABLE & HIGH QUALITY MATERIALS: Fray resistant 100% high quality dense 3mm thick air mesh material. Durable fully welded two D-Ring for quick and easy leash attachment. Durable plastic side buckle quickly clicks shut and stays put and ensure extra security.REDUCES STRESS: All of DOCO harnesses are designed to reduce stress, allowing weight to be distributed evenly through the chest and shoulders during walks.