Lightweight sweat-wicking fabric keeps you dry during high-intensity workouts
Four-way stretch mobility supports explosive movements and endurance
Bonded seams eliminate chafing for all-day comfort
Streamlined fit ensures a distraction-free experience
Engineered for versatility across training, lifting, running, and conditioning
Summarized by Shop
The Interval Shirt is the gold standard for training shirts. It’s 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
Material
Lightweight, moisture-wicking fabric
Seams
Bonded for chafe resistance
Fit
Streamlined, athletic cut
Sleeve
Sleeveless
Neckline
Crew or round
Available Sizes
S, M, L, XL
Summarized by Shop
4.7
26 ratings
5
4
3
2
1
Great quality, but needs a more open neckline
In my opinion, this is literally the short-sleeve Interval Tee but without the sleeves. It holds the same crew neck and full coverage across the shoulders. If you are looking for that exact fit without sleeves, it's a solid 5-star product. Personally, when going sleeveless, I prefer a slightly looser neckline for heat management and a bit more open fit around the shoulders, which is why I lean towards the Tank version. Still, the material and build quality are top-notch.
Y
Yoselín · August 13, 2026
Excellent fit for heavy training
Great cut around the shoulders and arms without feeling overly loose or restrictive. Handles sweat well during intense workouts and holds up great through the wash.
E
evan · August 4, 2026
Go to Shirt for Workouts
This is the best sleeveless tee that I’ve ever owned! Perfect fit that’s true to size. Light material, extremely comfortable, and stretchy so it moves with you. This is the first shirt that I reach for when working out. I have already purchased several in different colors, and I’m hoping Ten Thousand releases more color options for this shirt in the future. 10/10 would recommend to anyone!