The CX177 Wide Cycling Shoe provides superb comfort and performance for our ride. The fiberglass-injected nylon sole is stiff for efficiency and power transfer, and a Clarino microfiber and mesh upper keeps weight low without making any sacrifices for durability. The wide fit version is particularly well-suited for riders who find standard fit cycling shoes to be a bit too tight, and the L6 Boa dial helps dial in a perfect fit.