Bainbridge Double Layer Mesh Reflective Thread Dog Collar is breathable, lightweight yet durable mesh fabric double layered mesh with high tensile strength comfortable & secure. Reflective thread stitched throughout the collar for the night time safety & visibility and a heavy duty D-Ring for lead attachment & ID tag. Tough plastic side release buckle & tri-glide for easy size adjustment. 3 adjustable sizes; Small 28-40cm, and 2.0cm width, Medium 36-51cm and 2.5cm width, Large 43-67cm and 3.2cm width.