Elastic and Adjustable; These reflective straps are elastic, with 4 adjustable buckles, high flexibility, one size fits most, for men, women and kids^Reflective gears are made with durable polyester, strong belt buckle, last long time; lightweight and breathable, comfortable wearing, you can wear them over any clothing in any season, also easy to fold, you can carry it in your pocket^Suitable for all kinds of activities at night, our reflective tapes are very suitable for all ages and genders! Please use them when you go for a walk, jogging, running, dogging, biking or even riding a motorcycle. Tie a leash around your dog's neck and use it as an eye-catching collar to improve safety