Outdoor Research Men's Astroman S/S Sun Shirt Color:Slate Just fill up the flask

Just fill up the flask and let the EZ-Clean Membrane™ do the work

D2FC Digital Dynamic Flex Control

For easy transport to the rock

•TransAction™ Headband

Outdoor Research Men's Astroman S/S Sun Shirt Color:Slate Just fill up the flaskWhile we never seem to think of it in the moment, it's key to find ways to avoid getting roasted by the sun when climbing or hiking exposed routes. We wear the Astroman Short Sleeve Sun Shirt to the crag because the integrated UPF 50+ rating shields us from harmful UV rays, without sacrificing classic Outdoor Research casual styling. Button up shirt boasts a slew of hiking and climbing features Hybrid nylon and spandex construction is stretchy for