I was chatting to a guy in Go Outdoors about these, just this morning. It looks like the Dart long sleeve, 1/4 zip… He goes to Nepal next weekend and realised he hadn’t got a long sleeved top so I recommended this highly as I’ve got a couple. When I needed one, I asked about a wicking long sleeved top in Paramo (Keswick) and the girl suggested I look at these in George Fishers. She described it as being like the weight of wearing a cobweb but warm, wicking, and a doddle to wash/dry when touring. They do run small though, so XXL will be like a L/XL in most kit