Made of high grade and wear resistant nylon material, your pet will not feel uncomfortable when they wear it. Featuring stylish design, add more charm and beauty to pet's appearance. This vest is easy to wear, save your effort. LED luminous design, more safe to wear . Features - Material: Nylon. - Size : About 15.00X14.00X0.50cm/5.89X5.50X0.20inch. - Size L: About 20.00X19.00X0.50cm/7.86X7.47X0.20inch. - Size S: About 10.00X9.00X0.50cm/3.93X3.54X0.20inch. - Easy to wear and take off. Very suitable for pet dogs at night. - With USB charging design, you can charge it on many occasions. - This vest is very lightweight, and it will not affect your pet to play, make it more comfortable to wear. - A your pet dog. Show them your love and concern, increase the emotion between both of you. - LED luminous function design, your pet dog will be more safe to wear . Package list: 1 x luminous vest 1 x USB charging cable