Our Active Base Layer Top is made from four way stretch breathable materials it breaths out moisture while keeping you dry. With a flattering design keeping you cool and comfortable. Designed for the demands of the everyday rider, the subtle Dark Horse branding completes the look. Dark Horse Branding Four-way stretch fabric Active fit. Quick Dry Zip neck Bound cuffs with thumbholes. Size chart below Size Chest (to fit): Small 37/39 Medium 39/41 Large 41/43 XLarge 43/45 XX Large 45/48