Trail runners, mountain bikers, and adventure racers looking for a hydration solution that's ultra-light and aerodynamic can rejoice thanks to the Camelbak Men’s Racebak Hydration Jersey. Ditch your bulky backpack; it's a dinosaur in comparison to this sleeveless jersey with an integrated hydration bladder and highly-breathable design. Compression fabric gently squeezes the water reservoir to conform to your back as you empty it, so that annoying sloshing sensation is history. Pull a jersey over the Racebak and go hands-free with your hydration while others struggle with straps and packs.
I've taken this jersey on multiple 50+ mile endurance rides and two hour road bike races in Texas. Neither did I over heat or feel constricted in my movements. I have a 40" chest and the medium fits loosely enough to breath normally but snug enough that the bladder does not slide around on my back. A normal cycling jersey/shirt over this racebak does help as well to keep the racebak in place.