When there's a full sun forecast for your hike, pack the Sun Breaker Long Sleeve Shirt. This classic button up is a must-have for sun protection, offering UPF 50+ fabric to save you from the relentless loop of sunscreen slathering. The mechanical stretch allows for big movements on the trail, while the moisture-wicking material keep you cool and dry on hot days. A great, lightweight option for sunny hikes, beach days, or long days pounding the cobblestone.