Best for: Designed for trail running with reflective detailing for improved visibility.. .. The features: With thumb loops for warmth on cold mornings and a quarter zip so you can dump heat on warmer days. With reflective print detail at the back and cuffs, a reflective zip covering and our reflective logo on the front hem.. .. Our fabric: Designed for high intensity workouts, Novea is lightweight, breathable and incredibly soft. This nature-based fabric is made with NaiaTM which makes it our quickest drying fabric.. ... Storm Navy. 64% Bamboo Viscose, 29% Cellulose Acetate (Naia™), 7% Elastane. Reflective design details for improved visibility. Thumb loops. Quarter zip. Easy care - wash at 30°