The Pearl Izumi Optik jacket is incredibly light, yet it’s amply windproof and shower resistant.

Beyond light showers, moisture comes through, but it’s far better than nothing. A form-fitting cut has stretch panels for freedom of movement while rip-stop mesh protects from tearing. The fabric is comfortable worn next to the skin, so it’s fine to slip on over a summer jersey.

It has a drop tail for the riding position, Velcro cuffs, a pack-away hood and reflective strips.