A foundational layer for cool to cold conditions, the AROW Baselayer uses Pontetorto® Tecnostretch—an Italian fabric engineered for warmth, stretch, and moisture control. Weighing just 200g, it’s ultra-light, fast-drying, and packable, with a brushed inner for comfort and a smooth outer for clean layering.

The high collar and half zip offer quick thermoregulation, and it meets mandatory kit requirements for ultra-distance races—ideal for year-round use, long days, and unpredictable conditions.