1. Cross-wrapped one-piece chest straps, not squeezing the neck and legs, all-round care2. The length of the strap can be adjusted to suit the size of the pet3. Nylon breathable mesh, cool and comfortable to wear4. Metal buckle, easy to put on and take off5. Strong and durable6. Weight: 95g (S), 97g (M), 110g (L), 120g (XL)

http://olla.gr/vest-style-nylon-mesh-breathable-pet-chest-strap-dog-traction-rope-size-m-green/