Did you spend too much time hitting the weights and forget to do your holiday shopping? Need a fast, thoughtful gift that's sure to make a fellow fitness buff happy? We've got you covered. Stay with Muscle & Fitness all month for a great gift idea every day until Christmas.

ViewSPORT Sweat-Activated Shirts

Training gear is always a great way to get people motivated to work out, but plain cotton tees are hardly going to get anyone pumped to get pumped. That's why ViewSPORT has created these innovative shirts that actually show you how hard you're working. The shirts reveal a secret motvational message when you start to sweat. 

They're available in cotton or sweat-wicking polyester, so they're comfortable, functional and they'll keep you, and everyone around you, motivated up for a training session. 

$25-$32

Available at Viewsport.us