O'Neill Men’s Basic Skins Long Sleeve Sun Shirt, UPF 50+ Sun and Rash Protection for Surfing and All Outdoor Activities

This is my second O'Neill rashguard/swim shirt and it is top quality (one is short sleeve, and now this LS). There is a lot of variance in customer comments about fit and effectiveness, so here is my experience. I typically wear a size Large or sometimes XL depending on the brand/cut. SIZE/FIT: A Carhart cotton t-shirt size Large fits me loosely, while a Riggs t-shirt size Large is snug but still fits. I bought this O'Neill rash guard shirt as a 2XL hoping it would fit a bit loose and it does. A Large for me in the O'Neill would be tight and form fitting, not quite a compression fit. An XL would be better for a snug fit for swimming laps, etc. But I like the looser fit of the 2XL as a beach shirt that also works fine for casual swimming. So I would think you probably want to buy one size larger than your normal t-shirt size for the same type of fit. Buy your regular size for a near-compression fit. And buy two sizes larger for a loose fit. EFFECTIVENESS: I've worn this O'Neill shirt swimming in a pool for three hours in mid-day summer sun (95 degree F) with zero burning and hardly even any additional tan. I am fair skinned with freckles so sensitive to sunburn. On my face I liberally coated with SPF 50 sunscreen and it got very tanned, almost but not quite red. BUT, underneath the O'Neill shirt I was totally protected, much better than the SPF 50 sunscreen. Our grandkids wear O'Neill rashguard shirts at the ocean beach and play all afternoon without sunburn on shoulders or backs. These are also great for swimming or beach strolling when the temperature dips and the wind picks up and provide a little more warmth than just bare skin. QUALITY: These have lasted for a long time for our grandkids. Since they stretch a lot they have worn the same ones for three years while still growing, in both chlorine pools and ocean saltwater. The seams are well sewn and non-irritating, though not totally flat. It is a very tight weave and I've never seen them get snagged or torn at the beach or pool. It has a slick texture. I'm sure every brand has a small percentage of errors that slip through, but the six or so that we have bought have all been top quality in materials and construction.

Great fit. M 5’6” 160

I love this shirt. Normally I wear large shirts but prefer XL for comfort and less form fitting around my waist. I was going to a water park and wanted sun protection and a loose sun shirt for comfort and looks. I ordered the Black XL [I'm 5'9", 184 lbs, 43 chest] and it arrived same day. The package was small and light but I found the shirt to be durable and well made with strong fabric. I love the O'niell logo too. This shirt kept me cool as the water evaporated, acting like a wick, drawing away the 90+ degree day heat. It is long-sleeve. I would say this, with those temps, as long as you stay wet you're great. If not, it can hold your body heat and certainly make you heat up. Other than that, I looked good in it, my love handles were hidden and I walked around with confidence at the water park! NO SUN BURN !!! Work perfectly and I didn't have to put lotion all over my body and worry about re-applying all the time. This shirt provided total sun protection!

Comfortable shirt with a quality feel, dries quickly. It does hold a fair amount of water when splashing around in a pool or the ocean and a connector/tie to your board shorts would be nice to have as a results- descriptions that the shirt has a connector/tie to your board shorts is wrong. I am generally an XL, but ordered XXL based on reviews that said shirts run small. I did not find that to be the case. I should have stayed with the XL since it would have been nice to have the shirt fit a bit more closely when active in the water. However, I wore the shirt around town, rather than just in the water and found it nice for both roles. Sun protection was great as well. I would be tempted to buy the shirt again, even just to wear outside of the water. Only gave 4 stars because the absence of the advertised connector to board shorts and amount of water held by the fabric.

Great fit not to small not to big

Good quality - lasts and looks good on my son.

Very good

as you should expect

Great quality.

So I picked up three of these and I wasn't sure what to expect. Well, you can immediately feel the sunblock working (wore them in the Dominican Republic 🇩🇴) when I put them on. I needed some protection from the sun at times and these worked very well. I felt extremely comfortable walking around the beach -- did not make me hot or sweat since it kinda keeps you cool. Then into the water and surprisingly, wearing them out of the water was nice too. They dried quickly while adding to the cooling effect. Although they are not specifically designed for swimming, I found them perfect for it. Rash guards are better for swimming yes, but not for just walking around -- a little too tight. All in all, I used all three and will continue to use them each time we go down to the beach.

Ordered M size fit perfectly

Fits snug but I'm 5.9 140 so medium was perfect but not loose and not clingy

Excellent for the water, but also as an undershirt for golf