Nylon Material: our pet harness is made of high-quality nylon material, which has high tenacity, good elasticity, soft and wear-resistant. The woven mesh design on the surface has good air permeability. It can be used on cold and hot days. The soft material design can be used for furry friends. It provides total comfort. Adjustable Design: the pet harness is easy to use. First, loosen the seat belt and lay it flat on the floor, then place the seat belt under the pet's neck and chest, and then fasten the seat belt • Size: M