Why technical tee?
It’s no doubt that cycling jersey has evolved into the most optimized outfit for the sport. The skin-tight fit reduces aerodynamic drag more than aero frame and aero wheels, combined, could ever achieve—allowing us to go faster and cover more distance with the same power output. Combined with quick-drying material, its front zipper allows optimal thermal regulation in wide range of temperature, while its back pockets allow us to carry the essentials without messing with smooth pedalling movement. Cycling jersey is, therefore, a must for a competitive ride.
But most of us are riding for fun, not for competition.