10 Best Under Armour Rash Guards for 2025: Top Picks for Performance

The best Under Armour rash guard is essential for anyone looking to enhance their performance in water sports, martial arts, or simply workouts that involve sweat-inducing activities. With the rise of quality activewear, Under Armour has established itself as a leading brand in the market. This article will review the top 10 Under Armour rash guards available on Amazon, diving deeply into their features, pros, and cons, ensuring you find the perfect fit for your needs in 2025.

1. Under Armour Men’s UA Tech Long Sleeve T-Shirt

Under Armour Men’s UA Tech Long Sleeve T-Shirt

This versatile rash guard features Under Armour’s Moisture Transport System, which wicks sweat away from your body, keeping you dry and comfortable. Its loose fit allows for ease of movement, whether you’re hitting the gym or enjoying a day at the beach. The shirt is made from 100% polyester and has anti-odor technology to keep unpleasant smells at bay.

Best for: Gym workouts and casual wear.

Pros:

• Excellent moisture-wicking properties.
• Anti-odor technology is effective.
• Loose fit allows for full range of motion.

Cons:

• Not tight enough for competitive swimming.
• May snag on rough surfaces.

2. Under Armour Men’s HeatGear Armour Short Sleeve T-Shirt

Under Armour Men’s HeatGear Armour Short Sleeve T-Shirt

The HeatGear Armour T-Shirt is designed for intense training sessions. Its compression fit provides muscle support while the HeatGear fabric keeps you cool and dry. This rash guard features four-way stretch technology, allowing for maximum mobility. Additionally, it comes with ergonomic flatlock seams for better comfort and reduced chafing.

Best for: High-intensity training and workouts.

Pros:

• Compression fit enhances muscle performance.
• Superior moisture management.
• Ergonomic seams minimize chafing.

Cons:

• May feel too tight for some.
• Limited color choices.

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3. Under Armour Men’s Tech 2.0 Short Sleeve T-Shirt

Under Armour Men’s Tech 2.0 Short Sleeve T-Shirt

Under Armour’s Tech 2.0 offers a perfect blend of style and performance. The lightweight fabric ensures comfort during various activities while the UA Tech fabric gives a soft feel against the skin. Its loose fit combined with the anti-odor technology makes it an excellent choice for everyday wear or casual outings.

Best for: Daily wear and versatile activities.

Pros:

• Soft, lightweight fabric.
• Stylish design options.
• Effective anti-odor features.

Cons:

• May not be suitable for cooler weather.
• Loose cut may not appeal to everyone.

4. Under Armour Women’s HeatGear Armour Long Sleeve T-Shirt

Under Armour Women’s HeatGear Armour Long Sleeve T-Shirt

The Women’s HeatGear Armour Long Sleeve T-Shirt is tailored for performance and comfort. With its lightweight, breathable fabric, this rash guard keeps you cool while delivering excellent muscle support. The innovative design stops sweat from weighing you down, making it ideal for athletes looking to enhance their game.

Best for: Female athletes and fitness enthusiasts.

Pros:

• Breathable, soft fabric.
• Highly supportive with compression fit.
• Lightweight and stretchy.

Cons:

• May run small in size.
• Limited color range.

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5. Under Armour Men’s Long Sleeve Compression T-Shirt

Under Armour Men’s Long Sleeve Compression T-Shirt

This long-sleeved compression shirt offers muscle support and enhances recovery. Made from UA’s signature fabric, it efficiently moves sweat away from the body, keeping you comfortable during your workouts. The four-way stretch construction allows for dynamic movements, making it suitable for various sports, including martial arts.

Best for: Competitive athletes and training.

Pros:

• Excellent muscle support.
• Effective moisture management.
• Flexible and comfortable fit.

Cons:

• May feel restrictive for some.
• Care instructions require extra attention.

6. Under Armour Women’s Tech Twist Long Sleeve T-Shirt

Under Armour Women’s Tech Twist Long Sleeve T-Shirt

This stylish long sleeve tee provides performance without sacrificing aesthetics. It’s made from soft UA Tech fabric, which offers the comfort needed for any workout. This shirt features a twist design that adds flair, while the moisture-wicking properties keep you dry during intense sessions.

Best for: Fashion-forward athletes.

Pros:

• Trendy design for a modern look.
• Soft and comfortable material.
• Great moisture-wicking capabilities.

Cons:

• May not be ideal for colder climates.
• Limited stretch compared to compression options.

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7. Under Armour Men’s Protect This House Long Sleeve T-Shirt

Under Armour Men’s Protect This House Long Sleeve T-Shirt

This model stands out with its bold “Protect This House” graphic, perfect for those wanting to make a statement while working out. The shirt is made with UA’s signature fabric for extreme comfort and sun protection, making it a great option for outdoor activities as well. The innovative material helps maintain your body temperature and is incredibly soft against the skin.

Best for: Outdoor activities and casual outings.

Pros:

• Bold, eye-catching graphics.
• Excellent breathability and comfort.
• Sun protection for outdoor wear.

Cons:

• Graphic prints might not appeal to everyone.
• Color options can be limited.

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8. Under Armour Women’s UA Tech Short Sleeve T-Shirt

Under Armour Women’s UA Tech Short Sleeve T-Shirt

This women’s short sleeve rash guard is lightweight and designed for all-day comfort. It’s made from fast-drying fabric that also wicks sweat away, making it perfect for high-intensity activities. The shirt features a flattering cut that enhances your silhouette while providing optimal comfort during strenuous workouts.

Best for: Any fitness-related activity and casual wear.

Pros:

• Fast-drying fabric offers comfort.
• Flattering design enhances appearance.
• Perfect for a variety of workouts.

Cons:

• Limited durability against rough conditions.
• May require careful washing to maintain quality.

9. Under Armour Men’s HeatGear Compression Long Sleeve Shirt

Under Armour Men’s HeatGear Compression Long Sleeve Shirt

This rash guard is engineered for maximum performance with its moisture-wicking material and great breathability. The compression fit not only retains muscle heat but also supports effective recovery. This shirt features a stretch-mesh back panel to enhance cooling and comfort, making it ideal for heavy training days.

Best for: Competitive training and athletes looking for extra support.

Pros:

• Designed specifically for high performance.
• Offers incredible moisture management.
• Great for layering under other gear.

Cons:

• Can be too tight for casual usage.
• Need to select the right size for comfort.

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10. Under Armour Women’s Sports Bra with Built-In Rash Guard

Under Armour Women’s Sports Bra with Built-In Rash Guard

This innovative product merges the comfortable support of a sports bra with a stylish built-in rash guard. It features high-performance fabric for excellent ventilation and has quick-drying properties, making it ideal for any sport, be it swimming or running. This versatile piece is not only functional but stylish enough for casual wear.

Best for: Female athletes who want style and comfort.

Pros:

• Unique design combining two apparel types.
• Effective moisture management.
• Durable and high-quality fabric.

Cons:

• Limited support for larger sizes.
• May not fit all body types comfortably.

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With these outstanding options from Under Armour, you’re well-equipped to find the best Under Armour rash guard for your needs in 2025. Whether you require something for rigorous training or casual wear, there exists an option in this lineup tailored to your specifications.

Buying Guide for Under Armour Rash Guards

When it comes to aquatic sports, training, or simply enjoying the beach, a high-quality rash guard is essential for comfort and protection. Under Armour, a reputable brand known for its performance athletic gear, offers a variety of rash guards. Here’s a buying guide to help you choose the right one.

1. Purpose and Activity

• Surfing: Look for long-sleeve options for maximum sun and rash protection.
• Swim Training: Short-sleeve designs are great for flexibility and ease of movement.
• Other Sports: Choose according to the specific demands of the sport, e.g., grappling, paddleboarding, etc.

2. Material

• Fabric Composition: Under Armour uses a variety of materials such as polyester, spandex, and nylon blends that provide stretch, durability, and moisture-wicking properties.
• UPF Protection: Ensure your rash guard has a good UPF rating for sun protection.

3. Fit and Comfort

• Compression Fit: Offers support and helps regulate body temperature.
• Relaxed Fit: Provides more room and comfort for casual wear.
• Consider Sizing: Follow Under Armour’s sizing chart, as their products can vary in fit.

4. Features

• Flatlock Seams: Look for this feature to reduce chafing.
• Quick-Dry Technology: Helps keep you dry and comfortable.
• Odor Control: Some models come with anti-odor technology, great for extended wear.

5. Design

• Style: Choose between various colors and patterns based on your preference.
• Logo Placement: Consider how visible the Under Armour logo is, as it can be a style statement.

6. Price

• Budget: Under Armour rash guards can range in price. Set a budget and look for deals or discounts.
• Quality vs. Price: Invest in a higher-quality rash guard if you’ll use it frequently.

7. Care Instructions

• Washing: Check care labels for washing guidelines to maintain the quality and longevity of the rash guard.
• Drying: Avoid high heat to prevent shrinkage and damage to the material.

8. Reviews and Recommendations

• Customer Feedback: Look for reviews on the specific styles you’re considering to see how they perform in real-world scenarios.
• Brand Reputation: Trust Under Armour’s reputation but read specific product reviews for nuanced insights.

9. Where to Buy

• Official Website: Always a good option for the latest models.
• Sporting Goods Stores: Check for in-store options to try on.
• Online Retailers: Websites like Amazon, Zappos, or specialty sports shops often have sales and customer reviews.

Conclusion

Selecting the right Under Armour rash guard can make a significant difference in your comfort and performance during water sports and outdoor activities. Keep these factors in mind to find the perfect balance of style, functionality, and protection for your needs. Happy shopping!