The Core singlet has been engineered using EcoDura Tech, the next generation workout fabrication that integrates the two critical elements needed, moisture management and durability. This fabric has high filament yarns next to the skin to capture your sweat vapour and transport it to the spun polyester outer to disperse the vapour and keep you dry, which has the durability needed for trail runs to HIIT workouts. Both fibres are 100% recycled, GRS certified (Global Recycled Standard), and bluesign® approved. Our products are anatomically designed for an athletic-specific fit.