We may earn a commission if you buy through this link, at no extra cost to you.
Browse all Under Armour t-shirtsProject Rock Arena Women's Tank
The verdict
Fit
Sportstyle tanks in this line typically run true to size with a standard casual cut; white colorways may show more, so consider that when choosing underlayers.
Quality
Expect basic casual-line construction — comfortable enough for everyday and light gym wear, with the branding print the first thing to show age.
Price check
At $16.97 this is budget-tier for the category and fair value at the discounted price; the Project Rock branding carries some of the appeal.
Best for
Casual wearers who want an inexpensive branded tank for summer and light workouts.
Care
Wash cold with like colors, inside out, to protect the print and keep the white clean.
Fit check: Under Armour
True to sizeUnder Armour's everyday lines fit true to size with a deliberately roomy, athletic-loose cut rather than a tailored one.
Owner reviews of the core Rival Fleece hoodies and joggers repeatedly land on "true to size," with the cut described as loose and comfortable rather than baggy — several hoodie owners say to size down only if they want a trimmer fit. Sizing guides likewise report the brand fits true to your usual size once you pick the right cut, since Under Armour labels pieces by cut (loose vs. fitted vs. compression) and the fitted and compression styles are intentionally much snugger than the casual gear. Reviewers note the tees and tops run long and boxy rather than fitted, and a minority of jogger buyers found the slimmer athletic cuts snug enough to size up.
Sizing advice: Order your usual size in the casual fleece, tees, and joggers — size down only if you want a closer fit in the roomy cuts, and expect the fitted/compression-labeled styles to run much snugger by design.
Per owner & reviewer reports: Under Armour Rival Fleece Hoodie Reviews — Zappos · Under Armour Rival Fleece Joggers Reviews — Zappos · Under Armour sizing guide — OPUMO Magazine
What owners report about Under Armour t-shirts
Under Armour's Tech t-shirt line uses lightweight 100% polyester with overlock-stitched seams. Reviewers who wash-and-wear test it report the fabric holds up well over repeated washes, staying breathable without losing shape. The recurring complaint isn't failure but comfort: the overlock seams can feel abrasive on high-mileage runs, and odor control is described as good but not excellent after multiple wears. Fit runs on the loose, relaxed side, boxy rather than tailored, enough that some owners size down from their usual size for a closer cut.
- Strengths
- Reviewers consistently note the fabric holds up wash after wash without breaking down, staying breathable and lightweight through repeated wear.
- Watch out for
- The recurring complaint is the overlock-stitched seams, which some runners find abrasive on longer, high-mileage outings, plus odor control that testers rate good but not excellent.
- Sizing
- The line runs loose and boxy rather than fitted; some owners size down from their usual size for a closer fit.
About Under Armour's t-shirts line as a whole. Sources: Under Armour Tech 2.0 Review | Tested & Rated - GearLab · Under Armour UA Tech Loose Fit Tshirt Review - CoachLevi.com · Under Armour Tech T-Shirt Review (2025): Comfortable & Durable
Wear it with
Open in the outfit builderLooks similar
UA Tech Team Women's Sleeveless
UA x P-Star Performance Women's Oversized Crop T-Shirt
UA Velocity Women's Tank
UA Motion Branded Girls' Crop Tank
Prices as of the last refresh. Refresh log
Similar, per our reviews
Project Rock Graphic Girls' Tank
Project Rock Campus Women's T-Shirt
UA Softball Wordmark Bar Women's Tank
Project Rock Fitted Women's Bra Tank
Prices as of the last refresh. Refresh log