Enzyme washing gives them a soft feel and they're treated to resist and repel stains to keep them looking good for years to come. Integrated UPF 50 sun protection keeps you safe from harmful UV rays and 5-pocket construction provides ample places for stashing your stuff. With clean lines and simple styling, the Stahl Rung is appropriate for the work day and always ready for the weekend. Fabric: 100% cotton, garment enzyme washed. Omni-Shield advanced repellency. Omni-Shade UPF 50 sun protection.