The chest strap is made of cotton blend and it is safe and non-toxic. It can prevent your dog getting lost on the street and keep your dog safe. The chest strap can be used repeatedly and durable for long time use. Specification: Condition: 100% New Material: Cotton Blend Color: Red Blue(Optional) Size: S M L XL(Optional) Weight: approx. 104~141g/ 3.66~ 4.97oz Size:S Rope Length:120cm/ 47.24in Bust Circumference: 26-40cm/10.23-15.74in Suitable Weight:1.5-3kg Size:M Rope Length:120cm/ 47.24in Bust Circumference:38-48cm/ 14.96-18.89in Suitable Weight:3-5kg Size:L Rope Length:120cm/ 47.24in Bust Circumference:42-58cm/ 16.53-22.83in Suitable Weight:5-7.5kg Size:XL Rope Length:120cm/ 47.24in Bust Circumference:46-60cm/ 18.11-23.62in Suitable Weight:7.5-10kg Package Included: 1* Chest Strap 1* Pulling Rope Notice: 1. Please allow 0-2cm error due to the manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Escape Proof-- This adjustable kitty harness features adjusting straps which allow a just-right fit for your flexible cat. Both sides have a sturdy Safety Buckle for a more secured closure. Stylish Design-- Designed with the flower print it looks fashionable and beautiful make your pet looks more lovely and attractive. Easy On Easy Off Design-- Designed with the hook & loop easy to put on and take off. Pulling pressure is evenly distributed to the body to prevent pulling and choking. Application-- Our kitten harness is ideal for daily walking jogging training and any outdoor recreations. Your cat is free to walk after wearing and absolutely likes it! Comfortable Cat Harness-- Our escape proof cat harness with leash is made of cotton blend safe and non-toxic odorless breathable soft and comfortable while still keeping him/her cute with its breathable mesh.