For a base layer that ticks all the boxes and more you can't go wrong with the long sleeved tech tee. Easy to put on, thanks to its stretchy Crew neck, it's crammed with great additions, like argentium fabric technology that has great wicking properties when you're in intense situations, combined with lasting odor resistance. If you're lucky enough to see the sun, the UPF 30 protection built into the main fabric will keep UV rays at bay. Made from blue sign approved fabrics, you can relax knowing you're helping to keep the planet in tip top condition too. Always a plus point.