Joybuy Insights

Choosing Under Armour sports tops: how to find the right fit and fabric

Choosing a new sports top seems simple, until you find the fabric clinging to you, the fit restricting your movement or the size being different from what you expected during a workout. Under Armour sports tops also come in a range of styles, from a cotton top for everyday wear to a lightweight training top and a fleece 1/4 zip for cooler days.

Look out for these three common pitfalls:

  • “Quick-drying” without a clear fabric composition: a product description may say that a top wicks away moisture, but that doesn’t automatically tell you how quickly it will dry in your circumstances.
  • Confusing a standard size with an athletic fit: a regular fit isn’t tight against the body. That’s comfortable for everyday wear, but may not be the best choice if you’re looking for a close-fitting top.
  • Choosing based only on the brand or colour: a black Under Armour men’s T-shirt and an Under Armour women’s T-shirt may have similar names, but differ in sizing, chest measurements and waist range.

Which specifications matter?

1. Fabric: cotton, polyester or a blend

A cotton sports top often feels soft and is a practical choice for the gym, walking and everyday wear. According to the product information, the Under Armour Sportstyle tops in this selection are made from 60% cotton and 40% polyester. This blend is designed to combine comfort with a lighter feel and quicker drying than a top made entirely from cotton.

For intense training, a breathable sports top made with synthetic fibres is often a practical choice. Be sure to check the full fabric composition and follow the care instructions. Treat claims about moisture-wicking as a product feature stated in the listing, not a guarantee that every athlete will have the same experience in every temperature.

2. Fit and sizing

Don’t just look at S, M, L or XL. Compare the measurements with a top you already find comfortable. For example, the size charts provided for the men’s styles give chest measurements ranging from 86–94 cm for S to 122–132 cm for XXL. The Under Armour women’s T-shirt listing also gives waist and EU size measurements, as well as chest measurements.

A regular fit is generally less close-fitting than muscle-fit clothing. If you want room to move, a regular fit may be comfortable. If you’re looking for a close-fitting look for gym wear, check the chest, waist and shoulder measurements carefully. If you’re unsure, don’t automatically choose a larger size: it may fit well at the shoulders but be too loose around the body.

3. Sleeve length and when you’ll wear it

A short-sleeved sports T-shirt is suitable for the gym, strength training and warmer indoor spaces. A long-sleeved sports T-shirt works better as an extra layer during a warm-up, outdoor activity or on a cooler day. A fleece 1/4 zip provides more coverage than a T-shirt, but is less suitable if you want to shed heat quickly during intense exercise.

Also check the neckline and hem. A ribbed collar can help the top keep its shape, while a looser cut allows more freedom of movement. Check the care label too: several Under Armour styles recommend washing in cold water, turning the garment inside out and tumble drying on a low setting.

Our recommendations for different types of athlete

Suitable for: Budget-conscious beginners
WILLIT Women's Workout Tank Tops Black M

WILLIT Women's Workout Tank Tops Sleeveless Black M

Why it suits this profile: This loose-fit women’s workout tank top is designed for gym sessions, running and yoga. The sleeveless cut allows you to move freely during exercises and also works as a lightweight layer for everyday wear.

How this product avoids the pitfall

The product name mentions a quick-drying feature and a loose fit. Before buying, check the available size and the latest product details.

Key benefit & highlights

Sleeveless design, loose fit and made for running, yoga and the gym. Available in black, size M.

Suitable for: Shoppers looking for top quality
Under Armour Women's T-Shirt Short Sleeve Black XL

Under Armour Women's T-Shirt Short Sleeve Black Sportstyle Collection XL

Why it suits this profile: A versatile Under Armour women’s T-shirt for training, gym sessions and casual wear. The regular fit is designed for anyone who doesn’t want a close-fitting style.

How this product avoids the pitfall

The listing gives both chest and waist measurements. This makes it easier to compare the XL size than if you relied on the label alone.

Key benefit & highlights

60% cotton and 40% polyester according to the product information, short sleeves and a lightweight, breathable design.

Suitable for: Specific activities & intense training
Under Armour Men's Fleece 1/4 Zip Grey L

Under Armour Men’s Fleece 1/4 Zip Grey Armour Fleece Collection L

Why it suits this profile: This fleece 1/4 zip is well suited to outdoor training, warm-ups and layering. The high collar and zip fastening are practical when temperatures change.

How this product avoids the pitfall

The product information lists the fabric, fit, chest and waist range, and care instructions. This helps you decide whether it’s a mid-layer rather than a lightweight sports top.

Key benefit & highlights

100% polyester according to the listing, a soft inner layer, a 1/4 zip and a regular fit in size L.

Looking for more options?

We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and current European safety regulations.

Frequently asked questions about Under Armour sports tops

Is an Under Armour T-shirt suitable for running?

That depends on the fabric, fit and temperature. Short sleeves are practical in warm weather or indoors. In colder conditions, a long-sleeved sports T-shirt or fleece 1/4 zip may work better as an extra layer. Always check the fabric composition and product description.

How do I choose the right size?

Measure your chest and, if relevant, your waist, then compare those measurements with the chart on the product page. The men’s styles mentioned are described as regular fit and true to size. This is a guide, not a substitute for checking your own measurements.

How can I keep a sports top in good condition for longer?

Follow the care label. Several styles recommend washing in cold water, turning the garment inside out, avoiding fabric softener and tumble drying on a low setting. Also avoid leaving it in direct sunlight for long periods if the product information advises against this. This helps limit unnecessary wear and colour fading.