Interval Muscle Tee Color:Off White and our permanent anti-odor treatment

and our permanent anti-odor treatment

sweat-wicking fabric with high-stretch mobility

Made from our proprietary durable stretch canvas

an ulta-tough waistband

Interval Muscle Tee Color:Off White and our permanent anti-odor treatmentThe Interval Shirt is the gold standard for training shirts. Its built to move fast, breathe easy, and handle every workout without compromise. Constructed from lightweight, sweat wicking fabric with high stretch mobility, the Interval Shirt is equally at home in max effort conditioning, tough strength days, and miles on the road. Bonded seams and a streamlined fit ensure comfort that never distracts. This is the shirt built to push the limits.