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Interval Training Shirt (Light Grey)

Interval Training Shirt (Light Grey)

Ten Thousand
145
Regular price £49
Regular price £0.00 Sale price £49
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Expert Praise

Came out victorious in all categories. This shirt is designed by workout junkies for workout junkies

— Men's Health

Size
🚚 Order within the next 2 hours, 15 minutes for delivery by 12 Jun, 2026.
100-Day Returns
Klarna Elgible
£90+ Free Delivery
4.99 Trustpilot

Why It Made The List

New York-based Ten Thousand are fast establishing themselves as a standout fitness brand, marrying an obsessive focus on technical performance with an achingly cool approach to styling. Deeply rooted in CrossFit, Hyrox, and endurance racing, their gear is developed with elite athletes for peak performance across a range of disciplines. The Interval shirt is their most versatile piece yet—featuring lightweight, quick-drying fabric, silver-ion anti-odor tech, anti-chafe flatlock seams, and strategic ventilation. Plus, its pared-back aesthetic ensures you'll look as sharp outside the gym as you do in it.

More on TEN THOUSAND

At A Glance

  • Bonded seams and hems cut friction
  • Quick drying, moisture-wicking fabric
  • Anti-odour finish stays fresher longer
  • Ultralight, 144 GSM stretch blend

SPECIFICATIONS

Material mix: 84% polyester, 16% spandex
Fabric weight: 144 GSM
Colour: Light Grey
Anti-odour: Yes
Moisture-wicking: Yes
Quick-drying: Yes
Seams and hems: Bonded

MORE DETAIL

Ten Thousand have been making elite level gear since 2016 and after almost a decade at it, are producing the best training gear we've seen. We're not the only ones that think so, high praise is coming from all angles and this Versatile shirt is a large part of that.

Their utilitarian workhorse, the Interval is the definition of an exemplary all-rounder, made for men who want something they can use whatever the workout. It's light enough for running, robust enough for gym work, flexible enough for HIIT and will dry quickly if you're doing any of that in the rain.

With elite athletes in the design mix, they need to be comfortable enough to wear all day too. Flatlock seams prevent chafing, something Ten Thousand have laboriously tested with over 20,000 "anti-abrasion rubs." This, combined with well placed ventilation and a really high-quality shape make them incredibly comfortable, whether walking the dog or running a 10k.

Dedicated strength testing ensures the fabric can withstand a minimum of 100 pounds of pressure per square inch. That strength and their 144 GSM fabric weight, results in a level of robustness that won't fail with your first, fifth or tenth bar session.

The proprietary polyester/spandex mix is strong but stretchy, with quick-dry, sweat-wicking capability to keep you as dry as possible. On top of that, a silver ion anti-odour treatment has been applied to increase hygiene and prevent the shirt from smelling prematurely.

Looks-wise, we think Ten Thousand are a cut above. As you can see from the photos, these shirts maintain that position. Like their obsessive focus on performance, they have strong principles when it comes to colour and style—strip it back, make it work and let your training do the talking.

SHIPPING AND RETURNS

SHIPPING OPTIONS

Standard - Royal Mail Tracked 48 (2-3 business days): £2.95

DPD Next Business Day (Cut off: 2pm Mon-Fri): £5.95

DPD Next Business Day by 12 Midday (Cut off: 2pm Mon-Fri): £12.95

DPD Saturday Delivery (Cut-off: Fri 2pm): £9.95

DPD Saturday Delivery by 12 Midday (Cut off: Fri 2pm): £12.95

DPD Sunday Delivery (Cut-off: Fri 2pm): £9.95

18+ PRODUCTS

18+ Standard - Royal Mail Tracked 48 + Age Verified (2-3 business days): £4.95

18+ Express - Royal Mail Tracked 24 + Age Verified (Usually next business day but not guaranteed, cut-off 2pm Mon-Fri): £7.95

FREE SHIPPING

FREE Royal Mail Tracked 48 (2-3 Business Days): Orders £90+

FREE Premium DPD Next Business Day (Cut off: 2pm Mon-Fri): Orders £250+

*All time-specific deliveries are usually delivered within advertised timeframes, but carriers do not 100% guarantee

N.B. For 18+ orders that include bladed products or alcohol, a £2 surcharge is added to normal shipping costs, to cover the legally required Age Verification service (as detailed above). All such orders will be shipped via Royal Mail.

For some rural postcodes next day delivery is not possible. For more detail on these postcodes, please see our Shipping page. There is no system check for these postcodes, so please do not select these services if your delivery address falls within this list.

RETURNS

We offer 100-day returns, provided items are returned in a perfectly re-sellable condition (undamaged and in original condition with tags/packaging). For more detailed information on conditions of return and the process involved, please see our Returns policy page.

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