10 Best Long Sleeve Swim Shirts 2026 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 Kanu Surf Men's Standard Short Sleeve UPF 50 Swim Rash Guard Sun Shirt promises excellent sun protection with a UPF 50 rating, making it ideal for outdoor activities. The quick-dry, moisture-wicking fabric ensures that you stay comfortable and dry, even during intense activities like swimming or running.

Its lightweight, breathable material combined with raglan sleeves and flat-lock seams enhances comfort for all-day wear, reducing irritation and chafing. This shirt is both durable and retains its shape and performance after multiple washes, which is great for regular use. The design is versatile, allowing it to function well for various activities beyond swimming, such as fishing, hiking, and running.

However, it's important to note that this shirt is short-sleeved, which may not provide as much coverage as a long-sleeve swim shirt. Those seeking maximum sun protection might want to consider this limitation. Additionally, while the polyester fabric is durable, some users may prefer a blend that includes natural fibers for a different feel. The simple pull-on closure adds to the ease of use, and it's convenient that it's machine washable. This shirt is a solid choice for those looking for a reliable, multi-use sun protection garment, but shouldn't be mistaken for a long-sleeve option.

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.