The La Sportiva Moon Climb Long-Sleeve Shirt is cut from 220-gram organic cotton, giving it real substance and a loose fit that layers easily over a base layer or under a shell. A signature Climbing on the Moon patch on the chest ties the shirt back to the brand's own climbing roots, without needing a full print to make the point. We built it as a long-sleeve companion with its own heavyweight character, not just a longer version of a lighter tee.