Joybuy Insights

Choosing Under Armour sportswear: a practical guide to shirts, vests and trousers

A sports shirt that loses its shape after a few washes, leggings that slip down during squats, or a sweatshirt that gets too hot during the warm-up – these are all common buying mistakes. With Under Armour sportswear, the choice isn’t just about colour or brand name. Fabric, fit and intended use determine whether a garment suits your training.

Pay particular attention to three marketing pitfalls:

  • “Breathable” doesn’t automatically mean suitable for every workout. A cotton blend may feel comfortable, but it reacts differently to sweat than a fully synthetic fabric.
  • A standard size isn’t always standard. A regular fit, fitted model and compression fit feel noticeably different, even if you normally buy the same size.
  • Extra technologies are only relevant if you need them. Reflective details can be useful for running in the dark, while a soft fleece is best suited to warming up, travelling and everyday wear.

Which features should you check?

1. Fabric and moisture management

With moisture-wicking sportswear, the fabric draws perspiration away from the body according to the product description and dries relatively quickly. Always check the fibre composition:

  • Polyester with elastane typically offers stretch and is practical for intense movement.
  • Cotton-polyester feels soft and works well for fitness, warming up and casual wear, but can hold moisture differently to a technical sports fabric.
  • Cotton feels natural, but isn’t automatically the most practical choice for long or intense running sessions.

Brand names for technologies, such as HeatGear or moisture wicking, are product claims. Use them as a guide, but also look at the actual composition and care instructions. According to the product description of the selected Under Armour models, features such as quick-drying properties, moisture wicking and odour control are mentioned. These are not guarantees for every wearer or situation.

2. Fit and size

For shirts, measure your chest circumference; for leggings or jogging bottoms, measure your waist and hips. Compare these values with the size chart for the specific product. An Under Armour men’s sports shirt with a regular fit can be looser than a women’s model with a fitted fit.

Look out for these terms:

  • Regular fit: classic fit with room for everyday wear and light training.
  • Fitted: sits closer to the body and limits excess fabric during movement.
  • 4-way stretch: the product description states that the fabric moves in multiple directions; handy for fitness, yoga and strength training.

Don’t automatically choose a larger size if you want more freedom of movement. With a stretchy model, that can actually cause creasing, slipping or a poorer fit.

3. Design details and care

Small details make a difference in use. Think of a racerback on a women’s sports vest, a high waistband on women’s sports leggings, pockets on jogging bottoms or reflective elements on a running shirt.

Also check the label:

  • Wash sportswear inside out if recommended.
  • Don’t use fabric softener if the product description advises against it.
  • Tumble dry on a low setting to preserve the fit and fibres as much as possible.
  • Avoid ironing if the label instructs you not to.

Recommended choices by user profile

Suitable for: Budget-conscious beginners
Under Armour Sportstyle Logo Navy Blue M

Under Armour Sportstyle Logo - Navy Blue M

Why this fits the profile: This regular-fit Under Armour men’s sports shirt is designed for workouts, training and everyday wear. The cotton-polyester blend suits anyone looking for one shirt for multiple occasions.

How this product avoids the pitfall

The size chart lists a chest circumference of 94–104 cm for size M. This lets you check your choice rather than relying solely on the letter size.

Key benefit & highlights

60% cotton and 40% polyester; short sleeves; ribbed collar; regular fit.

Suitable for: Shoppers seeking top quality
Under Armour Men's Fleece Crew Navy White

Under Armour Men’s Fleece Crew Navy-White Icon Fleece Collection S

Why this fits the profile: This men’s fleece sweatshirt is suitable for gentle training, warming up, layering and casual wear. According to the product description, the brushed inner is designed for extra softness and warmth.

How this product avoids the pitfall

The mid-weight fleece is a clearly described layer. This helps avoid confusing this model with a thin running shirt for intense effort.

Key benefit & highlights

80% cotton and 20% polyester; ribbed collar, cuffs and hem; regular fit.

Suitable for: Specific use & intensive users
Under Armour Women's Tech Hi Capri Black

Under Armour Women’s Tech Hi Capri Black Sportstyle Collection M

Why this fits the profile: These women’s sports leggings are designed for training, running and studio sessions. The 4-way stretch and high waistband are practical features for lots of movement.

How this product avoids the pitfall

The size chart gives waist and hip measurements. Check these before purchase to avoid a slipping or overly tight waistband.

Key benefit & highlights

87% polyester and 13% elastane; high waist; side pocket; inside leg length of 56 cm on the size chart.

Suitable for: Runners and lightweight layers
Under Armour Women's Launch Singlet Black

Under Armour Women’s Launch Singlet Blk Sportstyle Collection S

Why this fits the profile: This model is a women’s sports vest with a racerback, designed for running and workouts where free arm movement is important.

How this product avoids the pitfall

The fit is described as fitted. Therefore, choose based on your chest and waist measurements, not just on a previous purchase.

Key benefit & highlights

Racerback design; overlapping hem for ventilation; reflective details according to the product description.

Which choice suits your sport?

For fitness and strength training, stretch, a stable waistband and enough room to move are important. A fitted vest or leggings can be practical when loose fabric gets in the way. For running, visibility also counts: reflective details are especially relevant if you often run at dusk.

If you’re mainly looking for an Under Armour men’s training shirt for the gym and everyday wear, you could consider a regular-fit shirt with a cotton blend. For rest moments, travel and warming up, a fleece crewneck is a better fit. Men’s jogging bottoms with an elasticated waist and drawcord offer adjustability; the Under Armour Rival Terry Jogger also has open hand pockets and a back pocket with a press stud, according to the product description.

When comparing similar models from Nike, K-Swiss or other sports brands, check the same points: fabric, size range, fit, intended use and care. That way, you’re comparing product specifications rather than just logos or discount labels.

Looking for more options?

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

Frequently asked questions about Under Armour sportswear

Is Under Armour sportswear suitable for running?

That depends on the model. For running, choose a lightweight shirt or vest with a described quick-drying or moisture-wicking fabric. Also check the fit and any reflective details. A cotton fleece is more suitable for warming up or wearing after your run.

How do I determine the right Under Armour size?

Measure your chest, waist and hips according to the product instructions and compare the centimetres with the corresponding size chart. Also pay attention to the difference between regular fit and fitted. The size chart for one model may differ from that of another model.

How do I keep sportswear in good condition for longer?

Always follow the care label. Many selected models recommend washing in cold water, washing with similar colours and drying on a low setting. Don’t use fabric softener if it’s advised against, and avoid ironing technical fabrics. This will limit unnecessary stress on fibres, prints and elastic components.