Published by at 24/07/2026 The REI Women's Co-Op Active Shirt in size M is a versatile and comfortable option for outdoor activities like hiking and walking. With long sleeves, a button closure, and a lightweight and breathable polyester/nylon blend fabric, this shirt is perfect for active wear. The purple color adds a pop of outdoor style, while the regular fit ensures a comfortable and relaxed feel. Machine washable for easy care, this shirt is a practical choice for a variety of outdoor adventures in all seasons.