Most Under Armour shoes tend to run slightly small; consider going up half to one size.
I’ve tested dozens of performance and casual Under Armour models and studied fit reports from runners and trainers. This guide explains whether do under armour shoes run small, why that happens, how to measure for the right fit, which models differ, and practical steps to avoid a poor fit. Read on for clear, tested advice so you can buy with confidence.
How Under Armour shoes generally fit
Many shoppers ask, do under armour shoes run small. Short answer: often yes. The brand designs snug, performance-first lasts for speed and lockdown. As a result, some models feel tighter than other brands in the same numbered size.
Fit also changes by model and year. Newer versions may alter volume or shape. Knowing how Under Armour fits lets you prepare to size up or choose a wide option when needed.
Why some Under Armour shoes run small
Materials and shape drive fit. Under Armour uses structured foams, tight knit uppers, and narrow lasts. These give a secure fit but lower internal volume.
Design choices focus on performance. A firm heel cup and narrow midfoot keep the foot locked for runs and courts. That lockdown can make the shoe feel small to people who prefer roomy fits.
Manufacturing and trim choices also vary. A thicker sockliner or added padding can reduce room. Seasonal updates change the interior feel without changing the printed size.
How to measure your feet and choose the right Under Armour size
Measure both feet while standing. Place a sheet of paper on the floor. Step on it and mark the heel and longest toe. Measure the length and width in inches or centimeters.
Compare measurements to Under Armour size charts. If you are between sizes, go up half size for runners and one full size for wide feet. Check model notes for narrow or wide fit calls.
Try shoes later in the day. Feet swell with activity. Shopping in the afternoon gives a more realistic fit. Always test with the socks you plan to wear during activity.
Sizing differences by model and activity
Running shoes
- Running shoes tend to run snug for speed. If you plan long runs, size up half to one size for toe room and swelling.
Training and gym shoes
- Training shoes often fit truer to size but can be narrow in the midfoot. Choose a half size up if you have wide feet.
Basketball and court shoes
- Court models offer firm lockdown and often feel narrow. Many players size up or choose wider versions.
Casual and lifestyle shoes
- Casual lines may fit true to size. Still check notes, as some lifestyle models mirror performance lasts.
Trail shoes
- Trail shoes usually run slightly larger for protection. But models vary, so test or size based on your last trail pairs.
What to do if your Under Armour shoes run small
Try half to full size up. This is the simplest fix. Most shoppers who feel tight find relief by increasing size.
Look for wide (2E) options. Some Under Armour models come in wide fits. This solves pressure at the forefoot and midfoot.
Swap insoles or remove thicker sockliners. Removing a thick insole can add room. Or install a thinner insole for a slightly larger feel.
Buy from stores with free returns. This makes testing risk-free. Keep tags on and try the shoes indoors first.
Personal testing notes and common mistakes
I’ve worn Under Armour running and training shoes across seasons. I found early versions of certain models ran small and tight. As I upgraded, I sized up half to one size for long runs. In one pair, swapping the insole fixed toe crowding without losing support.
A frequent mistake is relying only on your usual brand size. Feet differ by shape and by shoe. Trust measurements and model notes over a single number.
Another mistake is not testing with activity socks. Thin casual socks can hide fit issues that crop up during use. Wear the socks you plan to train in for realistic feedback.
Buying tips: online and in-store strategies
Buy from retailers with clear size charts and good return policies. That reduces the risk when trying different sizes.
Read model-specific reviews. They often mention whether do under armour shoes run small for that style. Look for multiple reports about the same model.
Try shoes in the afternoon and walk a few minutes. Test tightness in the forefoot and fit around the heel. Do a light jog for running shoes when possible.
If ordering online, order both your usual size and the next half or full size up. Return the pair that fits worse. This doubles shipping but saves the guesswork.
Fit FAQs and quick answers
Are Under Armour shoes narrower than other brands?
Many Under Armour shoes have a narrower last compared to some general brands. However, fit varies by model, so check model reviews and charts.
Should I size up in Under Armour running shoes?
Yes. For long runs and foot swelling, size up half to one size for most running models. Short tempo shoes may fit truer to size.
Do Under Armour shoes come in wide sizes?
Some models offer wide options. Look for 2E or wide labels and try those if you have broad feet.
Can I fix a tight Under Armour shoe without buying a new pair?
You can remove the insole, choose thinner socks, or stretch the upper slightly. These work for minor tightness but not for severe size mismatch.
Is it better to try Under Armour in-store or online?
Try in-store if you can. In-store fitting lets you test movement and comfort. Online can work if the seller has free returns and detailed size charts.
Frequently Asked Questions of do under armour shoes run small
Do Under Armour shoes run small across all models?
Not across all models. Many performance models run small, but casual and trail shoes vary. Always check model notes and user reviews.
How much bigger should I go if they run small?
Typically half to one full size up. For wide feet, a full size up is safer. Minor tightness may only need half a size.
Will stretching fix shoes that run small?
Stretching can help knit or leather uppers a little. It won’t solve narrow lasts or tight toe boxes. Use stretching for minor comfort tweaks only.
Are women’s Under Armour shoes sized differently than men’s?
Women’s and men’s lasts differ. Women should follow the women’s chart. Converting sizes can be confusing, so check the brand chart for accuracy.
Can I rely on customer reviews for sizing?
Yes. Reviews often report if a model runs small or large. Read several reviews to spot consistent trends before buying.
Conclusion
Most shoppers find that do under armour shoes run small often enough to justify measuring and testing before buying. Use simple steps: measure your feet, check the model notes, size up when in doubt, and choose wide options if needed. Try shoes in the afternoon, wear your activity socks, and buy from stores with easy returns.
Take action now: measure your feet, compare to the size chart, and order a backup size when buying online. If this guide helped, leave a comment about your model and fit so others can learn from your experience.
Rubel Miah is the Senior Editor at MyStyleGrid.com, where he brings a sharp editorial eye and an unshakable love for fashion to everything he does. A true style addict, Rubel lives and breathes trends, from streetwear to high fashion, and has a knack for turning inspiration into impactful stories. With years of experience in fashion journalism and digital media, he curates content that empowers readers to express themselves through style. When he’s not editing features or forecasting the next big thing, you’ll find him hunting down vintage pieces or capturing street style moments around the city.
