Cycling in rain may have you reaching for waterproof gloves, but Castelli's designers see some wisdom in going another direction -- that's why they crafted the Diluvio C Gloves from 3mm neoprene. The neoprene insulates like your other winter gloves, but also allows just a touch of moisture to stay inside, allowing your body to warm it up and work similarly to a wet-suit, keeping your digits toasty in cool rainy conditions. Their construction makes them an ideal go-to for days when a drizzle is imminent, but the temperatures aren't frigid.