evo.com | Roark Activewear Tees > 37.5 Technology uses volcanic minerals and activated carbon to keep the Roark Borrego Short-Sleeve T-Shirt cool and dry when the pace heats up. The light polyester-modal knit moves easily from a trail run to a night out without missing a beat. Polyester Modal Knit | 75% Polyester / 25% Modal Lightweight, breathable fabric that moves with you. 37.5(R) Technology Volcanic minerals and activated carbon help keep you cool and dry. | Roark Borrego Short-Sleeve T-Shirt Men's 2026 - Small Black | Polyester