If you want everyone to know that you're a hardened outdoors type then you could make it quite obvious with one of these t-shirts from Montane. The Alpine Endurance tee in particular shows that you know you're mountains with the list of 7000m peaks on the back. Montane are well known for their lightweight and durable clothing used in expeditions and these light, cotton t-shirts would offer a comfortable layer for relaxing around basecamp.
