The Assos UMA GT long-sleeve jersey carries over its proven AirCell body fabric for cooling airflow and adds Eclipse sleeves for UPF 50+ protection from shoulder to wrist. The pocket construction is simplified with fewer seams and cleaner lines, but keeps the same cargo-securing ramp design, so daily rides stay just as well supplied as before with even less jersey to notice. What Our Gearhead(R) Experts Are Saying:"I wore this on a hot afternoon ride and actually felt air moving through the body panels the whole way, which is exactly why they tell you to wear sunscreen underneath. The sleeves never felt heavy despite covering all the way to my wrists in direct sun."