Best Diving Rash Guard Shirts for Men of 2025

"I bought two of these shirts for a trip to Turks & Caicos. They fit comfortably and kept me cool at the beach, helping me avoid sunburn. I will be buying more!"

"I purchased three of these shirts for my husband and found them to be of good quality, especially for the price. They wash well, offer great sun protection, and are lightweight and wrinkle-free. He loves the cut and fit!"

"I wear this shirt on my boat for sun protection. It looks and feels great! I even wear it in the water, and it dries quickly in the sun. The size is perfect for me, and I plan to buy another in spring."

"I found this long sleeve rash guard perfect for snorkeling. It provided the sun protection I needed and was long enough to cover my back while swimming. The material quality is high, but the fit is tight, so I ordered a size bigger, which worked out well."

"I ordered the O'Neill Basic Skins L/S Crew in a size larger than my usual T-shirt size. It was tight but not constricting. I appreciate the length of the sleeves and waist, and it kept the sun off my skin during my beach vacation. After wearing it, I can definitely say it provided great sun protection."

"I love the quality of this fabric; it’s definitely not thin or cheap. I wore it while scuba diving, and it provided excellent protection both in and out of the water without any chafing from my gear. Just a heads up, it does run small, so consider that when choosing your size."

"This is my second O'Neill rashguard, and I find it to be top quality. I usually wear a size Large or sometimes XL, but for this shirt, I ordered a 2XL for a looser fit, which I prefer for casual swimming. I recommend going one size larger for a similar fit!"

"I love this shirt! I typically wear large but prefer XL for comfort. I wore it to a water park, and it kept me cool while providing total sun protection. No need to reapply sunscreen constantly, and I felt confident in it!"

"I really like this shirt. As a redhead, I burn easily, so I appreciate the sun protection it offers. I bought a white one because it matches everything, but be cautious when washing to keep it bright!"

"I was surprised by how well it fits and how comfortable it is. The fabric feels great, and I'm impressed by its durability—it doesn't tear easily when I take it off. Definitely a good value compared to the cheaper options I tried."

"I bought two O'Neill shirts in XXL, and while one fit nicely, the other was skin tight. Be cautious when choosing, as the descriptions can be misleading. Thankfully, Amazon's return policy is excellent!"

"I ordered a 2XL after reading reviews about sizing. It fits like a glove, looks stylish, and has just the right amount of slack in the chest. I’m really pleased with my purchase!"

"This shirt exceeded my expectations! I swim laps outdoors, and with the colder weather, it makes my time at the pool much more comfortable. I followed another reviewer's advice and ordered a size larger, which helps since it's snug and doesn't allow too much water in. I'm 5'9'' and 145 pounds, and a large works well for me."

"I only choose O'Neill for my wetsuit products because their size chart is spot on for me. This thin wetsuit long sleeve top fits like a glove and you hardly notice you're wearing it, except for the warmth it provides. It's perfect for early fall days when the temperature drops a bit, and the mobility is excellent!"

"I bought this for surfing during the SoCal summer. It’s thick enough to feel like a 3/2 wetsuit but maintains the lightness of a rash guard. The fleece lining keeps me warm and blocks the wind chill. While it does feel a bit heavier in the water, it still offers good flexibility. I'm really happy with this purchase!"

"I spend a lot of time by the pool or beach, but my skin doesn't handle heat well. These long sleeve UPF-50 SCUBAPro rash guards keep me cooler than being shirtless and reduce my sunscreen use. The fabric is comfortable and well-constructed, and I can't imagine going out in the sun without one."

"I normally wear a medium, but I had to return it for a large. The rash guard looks great and feels good, but I'd recommend sizing up for a better fit."

"I bought this shirt for diving in the Maldives, and I can't imagine going into the water without it. It fits like a second skin, and I'm 1.80m at 90kg with a perfect fit in size L."

"I love this for jet skiing. Fits perfectly, but the sizes tend to run small. I had to exchange a medium for a large. Amazon's service was immediate for the replacement."

"I've been searching for the ideal 'swim shirt' for years. This shirt wears like a wetsuit, tight and comfortable in the water. I was surprised that the black color didn’t heat up in the sun. Excellent sun protection; I spent hours outside without a burn. However, the sleeves can feel a bit tight after a while."

"I’m really disappointed with this product. The 'Extra Large' felt more like a 'Small', extremely tight and uncomfortable for surfing. The material quality didn’t meet my expectations either. I followed all return instructions but have yet to receive my refund, which is very frustrating."

"I needed a UV protective shirt for hiking in Utah, and this one fits great! I'm 5'11" and 230 lbs, and the XXL is perfect. The large hood keeps the sun off my face, and I love the soft, thin fabric that dries quickly. It feels cool to wear, which is essential since I sweat easily."

"I bought this rash guard for paddle boarding and it exceeded my expectations! The long sleeves with thumb holes are great for coverage, and the hood protects my neck. The material is light yet thick enough for sun protection, and the color is exactly as shown. Highly recommend!"

"I got this shirt for long hours in the sun, and it's fantastic! The comfortable hood and the length of sleeves provide excellent coverage. I even wear it while gardening. I was so impressed that I sent one to my best friend!"

"I'm 6'2 and 190 lbs, slim/athletic build. XL fits perfectly. The material is thin, so it doesn't offer much insulation. Better price than anything in the stores!"

"I ordered a size larger to ensure comfort, but it was still extremely tight on me. I wanted a snug fit, but this was so tight that I worried I’d struggle to take it off when wet!"

"I bought 8 of these shirts for a dive trip. They are great, comfortable, and feel like a second skin. The UV reflective material is a nice touch, and they look cool too!"

"I purchased this shirt to skip sunscreen while snorkeling and to keep warm in cooler water. I ordered a medium but received an XL, yet it fits me well. For reference, I'm a medium slim fit with Untuckit. The sizing is a bit strange, but overall, it's a fantastic shirt."

"I'm absolutely in love with this shirt! The quality is impressive, and it truly fulfills its purpose."

"I got this shirt for my trip to Cancun, and I couldn't be happier. I wore it multiple times swimming in the ocean for hours, and I didn't need any sunscreen at all. Plus, I didn't experience any rashes from the board I was using."