It's easy to channel your inner King of the Mountains when donning a pair of Pearl Izumi's PRO Leader v4 Cycling Shoes. Bantamweight construction comes courtesy of a lightweight upper and super-stiff carbon sole, both of which contribute to climbing out of the saddle and chasing virtual points on the road to retain your KOM leader's jers--ahem--segment. Contact points are very personal and important for proper power transfer, and the Pearl Izumi PRO v4 is the brand's new leader for maximum comfort and utmost efficiency. Pearl Izumi fashions the PRO Leader v4 with an Advanced 3-Layer Seamless Composite Upper with zero stitching to offer exceptional breathability and reduce hot spots by adapting to your unique foot shape. This 1:1 Zero Distraction Upper Fit mitigates foot discomfort by avoiding the soft tissue running along the top of the foot. The synthetic material won't stretch so durability and fit will remain the same as the day you take them out of the box. The Leader v4 utilizes asymmetric closures, and Pearl Izumi places dual IP-1 Boa reels slightly off-center to further protect those sensitive areas on top of the foot. The Boa IP1 dials allow 1mm micro-adjustability and pop up for full release. The 1:1 Integrated Carbon Power Plate delivers feather-light efficiency with a stiffness rating of 13 out of 13. Thanks to the unique uni-body construction--which eliminates a traditional lasting board--Pearl Izumi is able to preserve a super low 5mm stack height for a more powerful and fluid pedal stroke. The 1:1 Insole System rounds out the highlights by allowing independent left and right arch and forefoot varus canting adjustability for optimal pedaling mechanics.