Lightweight Comfort for Long Days in the Sun The Astroman Short Sleeve Sun Shirt is built for climbing, hiking, and long days in the sun, delivering lightweight comfort, mobility, and protection for active use. Made with a bluesign® approved recycled nylon blend, this breathable, quick-drying fabric moves with you thanks to movement-mirroring stretch. The updated design features a hidden snap front for a clean, functional look, a left zip chest pocket for secure storage, and a raised heat transfer logo for subtle detail. With a UPF 30 rating and standard fit, it offers reliable coverage and all-day comfort from trail to crag.