The Marmot Girls' Lateral 1/2 Zip is a lightweight long sleeve for cool days and chilly nights. The Lateral is a pullover with a mock neck and a 1/2 zip for temperature regulation. The main material is comprised of 96% polyester and 4% elastane, which wicks moisture away from her skin, dries quickly, and stretches to follow her every move. While running around the play ground or through the woods, the mesh panels underneath the arms allow for ventilation. The flat seam construction provides all day comfort and thumbholes keep sleeves in place and hands warmer.