This Super Tech Tee from Berghaus would be a great buy as you can use it all year round. It's light, comfortable next to the skin and wicks moisture away fast to keep you dry. Ideal if you have to wear it for extended periods as it's treated with anti odour zinc technology, but will dry quick if you do get chance to wash it out. It also has a UPF 30+ sun protection factor so for warm trekking adventures get it packed! Try wearing it under a fleece mid layer in Winter time and it will still perform well.
Brighten up your Spring/Summer wardrobe with these Men's Hiking and Walking T-shirts.