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Quantity
1
Description
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 Shir...
Reviews
4.8
278 ratings
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Fits great, durable material
I have been wearing the interval shirt option for a while. It has a great fit and holds up well. I work out about 6 days a week. I have not had any issues. Very happy with my purchase.
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Kevin · August 31, 2026
Best, most comfortable, lightest, most flexible and most durable training shirt ever
The interval shirt is the best training shirt I've ever owned. I wanted a shirt that works for a range of exercise, from jogging to weightlifting to general HIIT or cardio. Then I wanted a shirt that is light that you forget it's there, durable despite being light, and non-slim fit such that it doesn't get in the way of movements such as Olympic weightlifting. Then I wanted a shirt that is minimalist, without the loud gym shirt branding or gym bro coding. And the clincher, I want it to feel soft, even luxurious, and not feel like a technical shirt. The Interval met all these, and it's so comfortable I wear it outside the gym for errands when it's hot out and I want a quick-drying shirt due to sweat or when I want my least fussy shirt on. It really doesn't feel like a technical shirt and feels one step away from a comfortable cotton shirt. It also looks normal enough that I can wear it outside the gym. My only grip is I need XXL and this is the size that sells out in core colors less than a day after restocking!
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Oscar · August 30, 2026
Best workout shirt
I have put this shirt through the test of time. It’s very durable during my heavy kettle bell and sand bag sessions. I have a few in my wardrobe and will continue to buy more.