The Silver Ridge™ line is well known among travellers and hikers. Protect your face from the sun on summer hikes in the Columbia SILVER RIDGE™ III BALL CAP. The material repels water and has UPF 50 sun protection against harmful UVA and UVB rays. For really hot days or more strenuous activities, there's a band of special fabric that quickly wicks moisture away from your forehead, so sweat doesn't get into your eyes. The elastane added to the fabric increases comfort.