10 Best Long Sleeve Swim Shirts 2025 in the United States

The O'Neill Wetsuits Men's Basic Skins UPF 50+ Long Sleeve Rash Guard is designed for various water activities, including surfing, swimming, and paddle sports. This shirt is made from a blend of 87% polyester and 13% spandex, offering a comfortable yet durable construction. The 6-ounce fabric ensures a form-fitting, tight layer that fits like a second skin, which can be beneficial for active movements in water. It also features a UPF 50+ rating, providing excellent protection against harmful UV rays, a crucial factor for long hours under the sun.

The flatloc stitching and minimal seam placement help reduce the chances of skin irritation and rashes, enhancing comfort during extended use. Additionally, the shirt is quick-drying and has a four-way stretch, making it practical for various water sports and beach activities. The performance fit, being very form-fitting, may not be comfortable for everyone, especially those who prefer a looser fit. Also, the pull-on closure might not be as convenient for taking on and off compared to zippered options.

Despite these minor drawbacks, this rash guard is highly recommended for individuals who spend a lot of time in the sun and water, offering both protection and performance.

The O'Neill UV 50+ Sun Protection Women's Long Sleeve Rash Guard is a great choice if you're looking for reliable sun protection during water activities like surfing, swimming, or paddle sports. It offers a strong UPF 50+ rating, which means it blocks 98% of harmful UV rays, helping protect your skin from sun damage effectively. The material is a blend of polyester and spandex, making the shirt stretchy and comfortable while still durable enough for active use.

It fits tightly like a second skin, which is ideal for performance because it reduces drag in the water and prevents chafing. The design features minimal seams, which is important to avoid irritation, especially when worn for long periods in the water. However, the fabric care requires hand washing, which might be less convenient than machine washable options. The Tahitian Blue color is attractive and suitable for beachwear.

This rash guard is well suited for women looking for sun protection and a snug, performance-oriented fit during water sports, although it may require a bit more care with washing.

The Roxy Women's Fitted Rashguard is a solid choice for those seeking a long-sleeve swim shirt that offers strong sun protection with its UPF 50+ rating, keeping your skin safe during extended outdoor activities. Made from a blend of polyester and elastane, the fabric is quick-drying and stretchy, which helps keep you comfortable both in and out of the water. This shirt features a compression fit, meaning it hugs the body closely to provide support and a sleek silhouette, though this might feel tight or restrictive if you prefer a looser fit.

The flatlock seams reduce chafing, making it a good option for active sports like surfing, hiking, or yoga. Its durability stands out, designed to handle tough conditions without losing shape or comfort. Style-wise, the bright white color and feminine cut make it an attractive piece that can easily mix with bikini bottoms or workout gear. However, if you want something more relaxed or prefer less compression, you might want to explore other fits.

This rashguard performs well for women who want a performance-oriented, versatile top that balances fashion with practical features like moisture-wicking and sun defense.