Castelli Core Mesh 3 Sleeveless Base Layer

Summer Starts Here Creating that perfect summer weight base layer is harder than it sounds. Castelli have intentionally kept this base layer as minimalist as possible to let the open mesh fabric pull the moisture off the skin. The secret to this base layer comes in the fabric that is highly stretchy but without using Lycra® that tends to hold in the moisture. You stay drier and cooler, thus perform better when the heat rises.