SAS Sports Training 1 to 12 Number Bibs.Lightweight and breathable.Ideal for all types Of Physical Education purposes.100 % Polyester Fabric. SAS Sports Training Bibs Pack of 12 Bibs.Lightweight and breathable.Ideal for all types Of Physical Education purposes.100 % Polyester Fabric. Training bibs are made of strong breathable Mesh material. Perfect for use in both summer and winter from letting players not get overheated in summer or have to remove layers to ensure a perfect fit in the winter. The polyester fabric helps to keep fresh and comfortable players cool, which is perfect for summer athletics and other sports situations such as basketball, soccer, football, lacrosse, ice hockey, field hockey, dodgeball, and so on. It will stand out on the practice field. deal with the identification and differentiation of teams in team sports. SAS is a leading brand of sports goods. Manufacture and supplier of all Types of Sports Commodity.Material - Supreme quality polyester mesh.Comfortable to wear.Ideal for the identification and differentiation of teams in team sports.