Material: Nylon Mesh (bright colors). Easy to put on and take off, loose and comfortable, suitable for most people. It is very light, easy to carry. Brilliant jacket, make you stand out in the varied field. We have size chart, you can accorr it to choose szie. Recommend size:: youth is suitable 4-8 years old47*52cm / adult M54* 64cm is a suitable adult whose weight is less than 80kg). Adult L is a suitable adult whose weight is more than 80 kg or as a wear effect) 6-packs,4 To 8 Yearssoccer Bibs Jersey Nylon Mesh Sports Pinnies Team Scrimmage Training Vests - Football/volleyball/basketball Bibs