evo.com | Patagonia Jerseys > When it comes to high output active garments, merino wool is king. It's super breathable, moisture wicking, quick drying, and is naturally anti-microbial, which helps fight odor for multi-day wearability. The Patagonia Merino 3/4 Sleeve Jersey uses a lightweight, stretchy merino / recycled polyester blend with a tailored, bike specific fit and 3/4 length sleeves for maximum trail shredding comfort. 3.4-oz 65% Merino Wool / 35% Recycled Polyester Jersey Soft, lightweight merino wool and recycled polyester fabric stretches and breathes during high-output and variable-climate rides. 116 g (4.1 oz) RWS-Certified Virgin Wool Blend All of the virgin wool Patagonia sources is certified to the Responsible Wool Standard (RWS) to help ensure protection both for the animals that supply it and the land they graze. Regular Fit Neither slim nor oversized. Regular-fitting technical garments may be worn over heavier midlayers. Locker Loop at Neck | Women's Patagonia 3/4 Sleeve Jersey 2022 - X-Small in Purple | Wool/Polyester