Specially designed mesh panels allows air to circulate, pulling heat and moisture away, keeps you cool and dry all day long. Open weave airflow fabric. Prevents heat build up and keeps you cool and dry. Special stretch cup design fits B, C , D & DD sizes. Easy pull-over design. Seamless support without underwire or tight elastic. Extra wide shoulder straps ensure maximum comfort and freedom of movement without digging in. Wide sides fit comfortably snug.