Published by at 03/08/2026 Stay comfortable and stay dry with the REI Women's Size Medium Long Sleeve Wicking Base Layer Top in Grey. This crew neck pullover is made of 100% polyester knit fabric, perfect for activities like hiking, running, and training. With features like quick-dry, stretch, and breathability, this top is ideal for outdoor adventures in winter, fall, and spring. The classic/fitted sleeve design and flat seams provide a comfortable fit for everyday wear or as a base layer for casual or workwear occasions. Machine washable for easy care, this top is a versatile addition to any wardrobe.