The Magpul Core Cover Ballcap is designed to keep you cool and dry out on the range, on the trail or during your workout. This "Low Crown" crushable construction features a moisture-wicking stretch fit inner band and a main body construction of breathable performance mesh. Magpul Core logo on Black, Coyote, or Gray color hats.Features:High-performance polyester fabricCustom flex headband moisture managementEyelet VentingNo top button for use with ear muffsStretch Fit in two sizesLow CrownCrushableRaised vinyl Magpul Core logoSpecifications:S/M (57cm) 6-3/4" to 7-1/8"L/XL (59cm) 7-1/4" to 7-5/8"To determine your hat size:Measure the circumference around your head with a measuring tape or stringKeep the string level and firm across the temples and above the eyebrow ridgesMeasure length of the string and check the sizes above to find the closest matchFor in-between measurements use the next size up