Castelli UPF 50 + Light Arm 3 Sleeves - White Size:S 5 x 3500mm with slick

5 x 3500mm with slick stainless steel construction

consistent engagement with T-Type chainrings and cassettes

A standard Eagle PowerLock will physically fit a Flattop chain

Targeted padding at the base of the palm with the Castelli Damping System reduces median nerve pressure on long hard efforts

aggressive enough for hard riding yet comfortable enough to wear all day

Castelli UPF 50 + Light Arm 3 Sleeves - White Size:S 5 x 3500mm with slickWhat Makes the Castelli UPF 50 + Light Arm 3 Sleeves the Smart Choice for Sunny Rides? The Castelli UPF 50 + Light Arm 3 Sleeves use a polyester based Solare fabric that Castelli's lab tested at blocking 99. 8 percent of damaging UV rays. The fabric is more effective than nylon at stopping UV while doing a much better job of moving moisture, which means you stay drier and cooler when the sun is on you. Construction is kept clean to eliminate seams