Eastbay EVAPOR Team Warm-Up Full Zip Jacket - Boys' Grade School Make sure you're fresh and ready for the big game with the Eastbay EVAPOR Team Warm-Up Jacket. This jacket uses EVAPORô moisture-management technology to keep you dry and fresh during your warm-up routines. Contrast color pop on the upper arm gives you a great on-court look. This jacket has a loose fit, and is made to fit comfortably over your jersey. 2 side zip pockets. 100% cationic polyester pointelle. Imported.