Back Day - Sweat Activated Shirt Size:Medium Test your limits with this

Test your limits with this Sweat Activated Workout Tee with an Invisible Message that is revealed once you sweat

Cross-fit or Jogging

This motivational workout shirt is designed for maximum performance - its invisible design only reveals itself when you sweat and give it your all

The humorous message is only revealed when you sweat

Back Day - Sweat Activated Shirt Size:Medium Test your limits with thisBACK DAY Sweat Activated Shirt Are you uncertain of what exercise to do? Well, this Back Day shirt will reveal the exercises, you just need to sweat a little (10 minute obligatory cardio just to warm up). Looks like a normal shirt until you start sweating, then the message reveals and lets you know the best back exercises. Keep pumping, keep sweating, keep motivated with this sweat activated gym shirt. Featuring Omegastretch and Ultrasoft fabric to