The 100% recycled APEX ECO fabric perfectly balances warmth, wicking and breathability and is finished with POLYGIENE permanent odour control for multi-day freshness._Constructed using light UPDATE APEX ECO 100% recycled polyester - highly wickingLightweightHighly breathableUPF 20+ fabric - for sun protectionTailored fit - for next to skin comfort and flattering silhouetteLow profile flat locked sewn seams - for next to skin comfortTreated with POLYGIENE permanent odour control, perfect for multi day use - more wear, less washingNew logo - new to this season the Montane Monochrome logo_