The HypedCampus Truker Cap has a sturdy fit with adjustable closure. The cap also has a mesh back for comfortable wearing for a perfect day in the sun. This cap can be used by men or women. The cotton-polyester-nylon mix gives the material a nice texture and durability. • Structured, mid-profile, six-panel cap • 47/25/28 cotton/polyester/nylon • Hard buckram front panels • Mesh back • Permacurv visor, matching under-visor • Plastic adjustable closure • 3-1/2" crown • Head circumference - 21 5/8" to 23 5/8"