Multi day races revolve around one thing: the leader's jersey. This makes any article bearing that name a significant piece of cycling kit, so we greeted the release of Pearl Izumi's P. R. O. Leader Jersey with some high expectations. In order to meet those expectations, Pearl kitted the P. R. O. Leader with two different primary materials. The body is P. R. O. Transfer In R Cool, which excels at pulling moisture from your skin and diffusing it across its own surface for quick drying comfort. The sleeves and shoulders are P. R. O. Transfer fabric, a Coldblack treated material that reflects the sun's rays in order to keep you cool, inside and out. The jersey is finished with side panels of Direct Vent for added cooling and a panel of structural mesh to support the rear pockets, one of which is water resistant. The panels are laid out in an anatomic, race cut pattern, and an elasticized grip on the rear hem keeps that shape in place.