The Castelli Core Mesh 3 Short Sleeve Base Layer is all about regulating your temperature to keep you cool and dry in searing hot weather. The stretchy form fit (achieved without Lycra) ensures the base layer sits next to the skin, without rucking and with minimum seams, providing all-day wicking, comfort and air flow under your jersey.Magic Mesh 90% polyester wicking fabricMinimalist lightweight constructionReduced seams for greater comfortWide collarCastelli comfort range 20-40°C
