00% high quality single-ply nylon
Heavy duty stitching for long lasting quality
Higher tensile strength than polyester
Nylon is resistance to mildew, aging and abrasion
Less pressure on the chest and neck
Heavy duty two D-Rings for secure lead hook
Durable plastic side buckle are easy to harness the dog
Tri-glide for easy size adjustment  
Vibrant colors are easy to see at all times!