Mountain Hardwear Women's Size Chart The Crater Lake 3/4 Crew's unbeatable UPF 50+ sun protection lets you spend more time visualizing your route and less time worrying about sunburns. Even better: it's softer than your favorite T-shirt. Slightly dropped shoulders and sleeves that easily push up allow a full range of motion for climb after climb. Features: - High-performance solar knit with 50+ UPF rating. - Three-quarter sleeves provide sun protection. - Slightly dropped shoulders for full range of motion, - Vertical panel detail at back. - Fabric Body: UB Solar Knit (88% Polyester, 12% Elastane) - Fabric Weight: 4.2 oz / 120 g - Spring 2019 - Only Available to ship within the USA