BREATHABLE COVERAGE. Layer up in chilly weather with the Nike Element Men's 1/2-Zip Running Top. Stretch ribbed panels at the upper arms let you move freely, while a back mesh panel helps keep you cool when your route heats up. Nike Dry fabric helps you stay dry, comfortable and focused. Mesh back panel enhances breathability. 1/2-zip design for customised ventilation. Slightly curved back hem extends coverage.