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10 Best Rash Guards For Swimwear 2025 in the United States

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Our Top Picks

#1

Winner

O'Neill Men's Basic Skins UPF 50+ Long Sleeve Rash Guard, Smoke, L

Rating
10.0
Chosen by1,401
Material
Fit
UPF Rating

Most important from
7425 reviews

Material
The material is strong and durable, effectively preventing scratches from coral without any damage.
Fit
Fits extremely tight, like a second skin, which might be uncomfortable for those not used to compression shirts.
UPF Rating
Comfortable and light to wear, providing excellent sun protection during extended outdoor activities.
Seam Construction
The stitching, except for the collar, is flatlock, ensuring comfort and reducing chafing during wear.

The O'Neill Wetsuits Men's Standard Basic Skins UPF 50+ Long Sleeve Rash Guard is a strong choice for those looking for effective sun protection while engaging in water activities. Made of 87% polyester and 13% spandex, it offers a comfortable yet durable construction with four-way stretch, ensuring a snug and flexible fit. The UPF 50+ rating provides excellent protection against harmful UV rays, making it suitable for extended periods in the sun without causing skin fatigue.

The flatlock stitched seams are breathable and strategically placed to minimize chafing and maximize rash protection, enhancing comfort during wear. The long sleeves further contribute to sun protection and are ideal for full coverage during surfing, swimming, paddle sports, boating, and beach days. The performance fit is designed to be form-fitting, akin to a second skin, which may appeal to those who prefer a tighter fit, though it might be less comfortable for those who favor a looser style.

Style-wise, the design is minimalist, in a smoke color, which is versatile but may not stand out for those looking for more vibrant options. Hand wash care instructions may be a minor inconvenience compared to machine-washable alternatives. For those prioritizing functionality and sun protection, this rash guard is a reliable and high-quality option.

Rating
10.0
Chosen by1,401
Material
Fit
UPF Rating

Most important from
7425 reviews

Material
The material is strong and durable, effectively preventing scratches from coral without any damage.
Fit
Fits extremely tight, like a second skin, which might be uncomfortable for those not used to compression shirts.
UPF Rating
Comfortable and light to wear, providing excellent sun protection during extended outdoor activities.
Seam Construction
The stitching, except for the collar, is flatlock, ensuring comfort and reducing chafing during wear.
#2

O'Neill Wetsuits Men's Basic Skins UPF 50+ Short Sleeve Rash Guard, Pacific, Large

Rating
9.1
Material
Fit
UPF Rating

Most important from
2908 reviews

Material
Crafted from a soft and stretchy blend, it offers a snug yet flexible fit that moves with your body, perfect for intense water activities.
Fit
Sizes tend to run small; consider sizing up for the perfect fit.
UPF Rating
The UPF 50+ rating is exceptional, blocking 98% of harmful UV rays and offering peace of mind during long hours in the sun.
Seam Construction
Flatlock stitching minimizes chafing, ensuring a smooth experience against the skin.

The O'Neill Wetsuits Men's Basic Skins UPF 50+ Short Sleeve Rash Guard is a solid choice for those who enjoy water activities and need strong sun protection. It boasts a UPF 50+ rating, meaning it offers excellent resistance against harmful ultraviolet rays, which is crucial for long hours in the sun. This feature is recognized by the Skin Cancer Foundation, adding credibility to its effectiveness.

Made from a blend of 6oz polyester and spandex, the rash guard provides a balance between comfort and durability. This combination allows for flexibility, making it suitable for active sports like surfing and swimming. The performance fit is designed to be tight, almost like a second skin, which can be great for those looking to reduce drag in water. However, this might not be the best fit for those who prefer a looser garment.

The short sleeve design makes it more versatile for warmer climates but offers less coverage than long sleeve options. Its minimal seam construction is beneficial in preventing chafing and irritation, which is a plus for prolonged use in water. In terms of style, its simple, functional design is more about performance than making a fashion statement, which might appeal to those who prioritize utility. While the rash guard is recommended for hand washing only, which might require extra care, it’s a trade-off for the high performance and protection it offers. The O'Neill Men's Basic Skins Rash Guard is ideal for active individuals who need effective sun protection and a snug, performance-oriented fit during water sport activities.

Rating
9.1
Material
Fit
UPF Rating

Most important from
2908 reviews

Material
Crafted from a soft and stretchy blend, it offers a snug yet flexible fit that moves with your body, perfect for intense water activities.
Fit
Sizes tend to run small; consider sizing up for the perfect fit.
UPF Rating
The UPF 50+ rating is exceptional, blocking 98% of harmful UV rays and offering peace of mind during long hours in the sun.
Seam Construction
Flatlock stitching minimizes chafing, ensuring a smooth experience against the skin.
#3

O'Neill UV 50+ Sun Protection Womens Basic Skins Long Sleeve Crew Sun Shirt Rash Guard, Tahitian Blue, Large

Rating
8.5
Material
Fit
Sleeve Length

Most important from
4001 reviews

Material
The quality is exceptional, with a durable material that dries quickly and isn't overly hot, even in black.
Fit
The fit is true to size, offering a comfortable and snug fit that doesn't roll up, even during intense activities like white water rafting.
Sleeve Length
Long sleeves are essential for surfing, providing much-needed protection from friction and salt water, making this rash guard perfect for extended sessions.

The O'Neill UV 50+ Sun Protection Womens Basic Skins Long Sleeve Crew Sun Shirt Rash Guard in Tahitian Blue offers strong sun protection with a UPF 50+ rating, recommended by the Skin Cancer Foundation. This makes it a great choice for extended exposure to the sun during activities like surfing, swimming, paddle sports, boating, and general beach days. The shirt is made from a blend of polyester and spandex, ensuring both comfort and durability. The material is designed to be form-fitting and acts like a second skin, which can be beneficial for active users seeking minimal obstruction during motion. However, this tight fit might not be comfortable for everyone, especially those preferring a looser fit for casual wear.

Additionally, the minimal seam placement helps prevent chafing, making it ideal for long-duration activities in the water or under the sun. The long sleeves provide extra coverage, adding to the sun protection and rash prevention qualities. Style-wise, the Tahitian Blue color is vibrant and suitable for beachwear fashion. On the downside, the shirt requires hand washing, which may be inconvenient for some users. Moreover, it is imported and the origin details may not be relevant to all buyers.

This rash guard is a strong performer for someone needing high sun protection and a performance fit for active water sports.

Rating
8.5
Material
Fit
Sleeve Length

Most important from
4001 reviews

Material
The quality is exceptional, with a durable material that dries quickly and isn't overly hot, even in black.
Fit
The fit is true to size, offering a comfortable and snug fit that doesn't roll up, even during intense activities like white water rafting.
Sleeve Length
Long sleeves are essential for surfing, providing much-needed protection from friction and salt water, making this rash guard perfect for extended sessions.

Buying Guide for the Best Rash Guards For Swimwear

Choosing the right rash guard for swimwear can significantly enhance your swimming experience by providing comfort, protection, and style. Rash guards are designed to protect your skin from the sun, abrasions, and irritants while swimming or engaging in water sports. To find the best rash guard for you, it's important to consider several key specifications that will ensure you get the most suitable product for your needs.
MaterialThe material of a rash guard is crucial because it affects comfort, durability, and performance. Common materials include polyester, nylon, and spandex. Polyester is durable and resistant to chlorine, making it a good choice for pool swimming. Nylon is lightweight and quick-drying, ideal for beach use. Spandex provides stretch and flexibility, ensuring a snug fit. Choose a material based on where you'll be swimming and your comfort preferences.
FitThe fit of a rash guard can range from tight (compression) to loose (relaxed). A tight fit is ideal for active water sports as it reduces drag and stays in place. A loose fit offers more comfort and is suitable for casual swimming or lounging. Consider your activity level and personal comfort when choosing the fit. If you plan to engage in vigorous activities, a tighter fit may be more appropriate, while a looser fit is better for relaxed use.
UPF RatingThe UPF (Ultraviolet Protection Factor) rating indicates how effectively the rash guard protects your skin from the sun's harmful UV rays. A higher UPF rating means better protection. Look for rash guards with a UPF rating of 50+ for maximum sun protection, especially if you spend extended periods outdoors. If you swim mostly indoors or in shaded areas, a lower UPF rating may suffice.
Seam ConstructionSeam construction affects the comfort and durability of a rash guard. Flatlock seams lie flat against the skin and reduce chafing, making them ideal for prolonged wear. Overlock seams are more durable but can be bulkier and may cause irritation. Consider flatlock seams if you have sensitive skin or plan to wear the rash guard for long periods. Overlock seams are suitable for those who prioritize durability over comfort.
Sleeve LengthRash guards come in various sleeve lengths, including short, long, and sleeveless. Short sleeves offer more freedom of movement and are cooler in hot weather. Long sleeves provide better sun protection and warmth in cooler conditions. Sleeveless options are great for maximum arm mobility. Choose the sleeve length based on the climate you'll be swimming in and your preference for sun protection versus mobility.
Design and StyleThe design and style of a rash guard can reflect your personal taste and make you feel confident while swimming. Rash guards come in various colors, patterns, and cuts. While aesthetics are important, also consider functional design elements like high collars for extra sun protection or zippered fronts for easy on and off. Pick a design that you find visually appealing and that meets your functional needs.

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