Mastering Under Armour Sizing: Your Ultimate Guide to Finding the Perfect Fit

In the world of athletic apparel, achieving peak performance starts with the right fit. Clothes that are too loose can restrict movement, while those that are too tight can cause discomfort and chafing. Under Armour offers a wide range of performance apparel, but navigating their sizing system can seem daunting. This guide will equip you with the knowledge to decipher Under Armour size charts, understand key factors influencing fit, and ultimately find clothes that move and perform with you, not against you.

Deciphering Under Armour Size Charts

Under Armour provides separate size charts for men, women, and kids on their website. These charts typically use letter or number sizes (e.g., S, M, L or 8, 10, 12) and correspond to specific body measurements like chest, waist, and hips.

Tips for Interpreting Size Charts Accurately:

  • Identify Your Category: Ensure you’re referencing the correct size chart (men’s, women’s, or kids).
  • Take Measurements: Using a measuring tape, record your chest, waist, and hip measurements. Refer to the size chart’s instructions on how to take these measurements accurately (e.g., standing upright, relaxed breathing).
  • Match Measurements to Size: Locate your corresponding size on the chart based on your measurements. Under Armour often offers a range of measurements for each size. If you fall between sizes, consider the following:
    • Competition Fit: Choose the smaller size for a tighter, more compressive fit ideal for activities requiring maximum support (e.g., weightlifting).
    • Recreational Fit: Choose the larger size for a looser, more comfortable fit suited for activities like running or yoga.

Key Factors Influencing Under Armour Fit

Finding the perfect Under Armour fit goes beyond just size charts. Here are additional factors to consider:

Material and Fabric Considerations :

  • Stretch Fabrics: Under Armour offers apparel with varying degrees of stretch. Consider your desired level of movement and compression when choosing a material.
  • Moisture-wicking Properties: Fabrics like HeatGear prioritize sweat-wicking and breathability. These might feel looser compared to cotton but keep you drier during intense workouts.

Design and Intended Use Impact on Fit:

  • Compression Gear: Designed to provide a snug, supportive fit for improved circulation and muscle recovery.
  • Loose-Fit Styles: Ideal for activities requiring maximum range of motion, like running or basketball.
  • Product Line Variations: Under Armour has various lines (HeatGear, ColdGear, etc.) with specific design features that might influence fit. Consider the line’s intended use when choosing your size.

Differences Between Product Lines and Collections:

Under Armour offers a variety of product lines and collections, each with potentially different fits. For instance, a HeatGear running shirt might have a slightly looser fit compared to a HeatGear compression top designed for weightlifting. Always check the product description for information on the intended use and fit of a specific item.

Finding Your Perfect Fit

Trying On Under Armour: In-Store vs. Online:

  • In-Store: Allows you to try on clothes for the most accurate fit assessment. Consult with a sales associate for guidance.
  • Online: Offers convenience and wider selection. Carefully review size charts and consider the return policy in case of fit issues.

Tips for Accurately Assessing Fit Without Trying On:

  • Utilize Online Reviews: Look for reviews that mention fit and sizing.
  • Compare to Similar Brands: If you’re familiar with the fit of another brand, use that as a reference point when looking at Under Armour’s size chart.
  • Under Armour Size Recommendation Tool: Some Under Armour websites offer recommendation tools based on your answers to questions about body type and preferred fit.

Understanding Body Measurements

Step-by-Step Guide to Measuring Yourself for Under Armour Apparel:

  1. Gather Tools: You’ll need a measuring tape and a pen and paper to record your measurements.
  2. Chest: Measure around the fullest part of your chest, keeping the tape level.
  3. Waist: Measure around your natural waistline, where you typically wear your pants.
  4. Hips: Measure around the fullest part of your hips, keeping the tape parallel to the floor.
  5. Inseam (Optional, for bottoms): Measure from the top of your inner thigh to your desired pant leg length (e.g., ankle, knee).

Common Pitfalls to Avoid When Measuring

  • Inaccurate Measuring Tape: Double-check that your measuring tape is accurate and lays flat against your body while measuring.
  • Tensing Up: Stand relaxed with normal breathing during measurements. Don’t hold your breath or suck in your stomach, as this will lead to inaccurate results.
  • Inconsistent Measuring: Try to measure yourself at the same time of day, as your body measurements can fluctuate slightly throughout the day.
  • Guessing or Rounding: Take your measurements precisely. Don’t round up or down to the nearest inch or centimeter.

By following these tips and understanding the factors influencing Under Armour fit, you’ll be well on your way to finding the perfect performance apparel that flatters your form, enhances your movement, and fuels your athletic endeavors. Remember, the ideal Under Armour fit should feel comfortable, supportive, and allow for a full range of motion during your chosen activity. If you’re still unsure about sizing after considering all these factors, don’t hesitate to reach out to Under Armour customer service or consult with a sales associate at a physical store. Happy shopping!

Navigating Common Sizing Concerns

Finding the perfect Under Armour fit requires addressing some common concerns:

Does Under Armour Run Small?

Addressing the Myth and Providing Insights into Sizing Consistency:

There’s a misconception that Under Armour runs small overall. The truth is, Under Armour’s sizing is generally consistent with industry standards. However, some factors can influence how their clothes fit:

  • Product Line: Different Under Armour lines (HeatGear, ColdGear) might have slightly different fits due to their intended use. HeatGear, designed for hot weather, might feel looser compared to a compression shirt.
  • Material and Stretch: Fabrics with higher stretch content might feel snugger initially but offer a wider range of motion.

Here’s the key takeaway: Rely on Under Armour’s size charts and fit guides, considering the intended use of the garment and your preferred fit (competition-like or loose).

Dealing with In-Between Sizes

Strategies for Choosing Between Sizes When You Fall on the Cusp:

If your measurements fall between sizes on the chart, consider these factors:

  • Activity Level: For high-intensity activities requiring maximum mobility (running, basketball), choose the looser size.
  • Desired Fit: For a more compressive fit with better muscle support (weightlifting), choose the smaller size.
  • Comfort Preference: If you prioritize absolute comfort and looser-fitting clothes, opt for the larger size.

Ultimately, the best choice depends on your personal preference and activity. You can also try ordering both sizes and returning the one that doesn’t fit perfectly.

Adjusting for Specific Garments

Sizing Variations in Tops, Bottoms, and Footwear:

Under Armour offers a variety of tops, bottoms, and footwear, and each category might have slight variations in sizing:

  • Tops: Consider your desired level of fit. Loose-fit tops for running might be sized differently than compression shirts designed for weightlifting.
  • Bottoms: Inseam length is crucial for bottoms. Under Armour offers various inseam options. For joggers or sweatpants, you might prefer a looser fit and choose a size up.
  • Footwear: Always refer to the specific shoe size chart for Under Armour footwear. Consider activities and any needed sock thickness when choosing your shoe size.

Recommendations for Each Garment Type:

  • Tops: Measure your chest and consider your desired level of fit (loose or compressive) when choosing a size.
  • Bottoms: Measure your waist, hips, and desired inseam length to ensure a proper fit.
  • Footwear: Measure your foot and consider any sock thickness you typically wear with the shoes before choosing a size.

Expert Tips for Sizing Success

Leveraging Customer Reviews and Feedback:

How to Use Reviews to Inform Your Sizing Decisions:

Customer reviews can be a valuable resource for understanding how Under Armour clothes fit in real life. Here’s how to leverage them effectively:

  • Focus on Reviews for Specific Items: Look for reviews on the exact item you’re considering, including the product line (HeatGear, ColdGear) and style (shirt, pants, etc.).
  • Identify Common Feedback Patterns: See if there are recurring comments about sizing. For example, many reviews might mention a specific top running slightly large.

Remember: Reviews offer insights, but experiences can vary. Use them as a data point alongside size charts and fit guides.

Seeking Guidance from Under Armour Specialists:

Utilizing Customer Service and Support Resources Effectively:

Under Armour offers customer service through their website or social media platforms. Don’t hesitate to reach out with specific sizing questions about a particular garment.

Here’s what to include in your inquiry:

  • The specific Under Armour item you’re interested in (including product line and style)
  • Your body measurements (chest, waist, hips)
  • Your desired level of fit (loose or compressive)
  • Any activities you plan to use the garment for

With this information, Under Armour customer service representatives can provide personalized sizing recommendations.

Maximizing Comfort and Performance

The Importance of Proper Fit in Athletic Performance:

How Ill-fitting Apparel Can Impact Performance and Comfort:

Clothes that are too loose can snag, bunch up, or restrict movement, hindering your performance. Conversely, clothes that are too tight can cause chafing, discomfort, and limit your range of motion.

Here’s how proper fit benefits you:

  • Enhanced Performance: Well-fitting clothes allow for unrestricted movement and optimal muscle support, maximizing your athletic potential.
  • Increased Comfort: Clothes that fit well prevent chafing and irritation, allowing you to focus on your workout without discomfort.
  • Improved Confidence: Feeling good in what you wear can boost your confidence and motivation during exercise.

Achieving Optimal Mobility and Flexibility:

Selecting the Right Size for Unrestricted Movement:

When choosing Under Armour apparel, prioritize a size that allows for your full range of motion. This is particularly important for activities like:

  • Running: Your clothes should move freely with your body as you stride.
  • Yoga or Pilates: Look for garments that stretch and bend comfortably as you go through various poses.
  • Team Sports (Basketball, Soccer): Your apparel should allow for quick bursts of speed, sharp turns, and jumping without restriction.

Preventing Chafing and Discomfort with Proper Fit:

Ill-fitting clothes can rub against your skin, causing chafing and irritation. Proper fit minimizes this risk. Here’s how:

  • Avoid Tightness: Opt for a size that allows for some breathing room, especially in areas prone to chafing (inner thighs, armpits).
  • Seamless Construction: Look for Under Armour garments with seamless construction that reduces the likelihood of chafing caused by traditional seams.
  • Moisture-wicking Fabrics: Choose fabrics like HeatGear that wick away sweat, preventing moisture buildup that can contribute to chafing.

By following these tips and understanding the factors influencing Under Armour fit, you’ll be well on your way to finding the perfect balance between comfort, performance, and style. Remember, the right fit allows you to move freely, perform at your peak, and feel confident throughout your workouts. So, take the time to measure yourself accurately, leverage available resources, and don’t hesitate to seek help from Under Armour specialists to ensure you find the perfect fit for your athletic endeavors.

FAQs (Frequently Asked Questions)

H3: What should I do if my measurements fall between two sizes on the Under Armour size chart?

If your measurements fall between sizes, consider a few factors:

  • Activity Level: Choose the looser size for activities requiring maximum mobility (running, basketball).
  • Desired Fit: Opt for the smaller size for a more compressive fit with better muscle support (weightlifting).
  • Comfort Preference: If absolute comfort and looser clothes are your priority, choose the larger size.

You can also try ordering both sizes and return the one that doesn’t fit perfectly.

H3: How do I know if I need to size up or down in Under Armour footwear?

Always refer to the specific shoe size chart for Under Armour footwear. Consider activities and any needed sock thickness when choosing your shoe size. Under Armour customer service can also offer personalized recommendations.

H3: Are Under Armour sizes consistent across different product lines?

Under Armour sizing is generally consistent, but slight variations might exist between product lines. For example, HeatGear clothing designed for hot weather might feel looser compared to compression shirts. Always check the product description for information on the intended use and fit of a specific item.

H3: Do Under Armour compression garments fit differently than regular apparel?

Yes, Under Armour compression garments are designed for a snugger fit to provide muscle support and improve circulation. When choosing compression gear, refer to the size chart and consider how tight you prefer the fit to be.

H3: What should I do if I receive my order and the fit isn’t quite right?

Under Armour typically offers return and exchange policies. Check their website for details on how to return items that don’t fit properly.


Finding the right Under Armour fit is essential for maximizing comfort, performance, and confidence during your workouts. This guide has equipped you with the knowledge to navigate size charts, understand key factors influencing fit, and leverage resources to ensure you choose the perfect apparel for your needs. Remember, a proper fit allows for unrestricted movement, prevents chafing, and lets you focus on achieving your fitness goals. So don’t hesitate to measure yourself accurately, utilize online reviews and customer service, and find the Under Armour apparel that fits you like a second skin and fuels your athletic journey.

The Real Sport Store
Compare items
  • Total (0)
Shopping cart