BONAWEN Dog Saddle Bag for Large Dogs, Adjustable 600D Oxford Fabric, Large Capacity Reflective Dog Backpack for Hiking Camping Training Material: nylon , plastic cordlock ,reflecitve dots in the dark,metal dog hook, Reflective tape is many times brighter than other standard reflective tapes, and is the brightest of all prismatic tapes. Standard reflective tape needs to be either directly in front of oncoming headlights, or within approximately 20 degrees, to be seen. 5 long and 1/2 inch thick will handle the strongest pulling dogs, padded triffic handle let you feel more comfortable when climbing moutain with your pet dogs It has a much wider reflective range which means it remains highly visible from multiple angles, resulting in increased safety for you and your dog. Please measure your pets carefully for making the right purchase. Always look at the size chart for the recommended weight range to confirm the size