Mountain biking design. This funny MTB shirt shows the evolution of man to mountainbikers. It makes the perfect gift for moutain bikers and cyclists! Moutain bikers and cyclists have always known it: They are the most advanced stage of human evolution. Show it to everyone by wearing this funny moutain biking tee which is also a great gift idea for moutain biking lovers. Lightweight, Classic fit, Double-needle sleeve and bottom hem