LIGHTER AND FASTER
When Castelli saw the huge aero gains in the Aero Race 5.0 Jersey Castelli knew that they could make the Climber’s Jersey more aero as well. They figured that while they’re at it, they should go ahead and make it lighter as well. And more comfortable. And quicker drying. And stretchier to fit more people. They’ve kept decent sun protection on the back (UPF 16 filters 93% of damaging UV rays). While originally made for big climbs and hot weather, their pro riders showed them it’s the ideal jersey for most conditions because it dries almost instantly so has a very wide temperature range.