Whether hanging in El Cap Meadow or checking out wandering trails, the Marmot Womens Zoey Short Sleeve Shirt stuffs performance features into a super packable and lightweight button up. When you tally up a flattering fit with all the features a highly air permeable fabric for superb breathability, wicking and drying ability and light UV protection its hard to imagine that in the Zoey it wont be a day well spent. Fabric is 100% polyester plain weave 2.3 oz. yd. AirExchange performance fabric. Packable, air permeable, lightweight fabric. Ultraviolet Protection Factor UPF 30. Polyester for quick drying and wicking. Darts for tailored fit. Shirt tail hem and double chest pockets with button closure. Regular fit. Avg. wt. 4.2 oz. 119.1g.