Hi! As heatwave scorches Europe, the second problem I’m a little afraid of (especially as someone without any melanin in my skin) is the sun. I’ve seen someone mentioning a sun shirt but trying to find real information online is very confusing, especially with EU in mind ( I see US has something called UPF) and if you are not looking for ads. Maybe someone knows something about it?

  • foxymochakitten@slrpnk.net
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    23 hours ago

    Surprised that no one’s talking about linen, which is one of the most solarpunk materials I can think of.

    I am also extremely pale and burn very easily, and my family has a history of skin cancer so that’s fun too! Don’t worry about UPF ratings or special sun shirts or anything like that. Your goals are, 1, keep the sun from touching your skin, and 2, stay cool so you don’t overheat during the heatwave. Linen fabric will do both.

    Get yourself a long sleeve linen button-up - mine are from the thrift store to avoid buying new, but if you have to buy new then you have to. You can wear it over your normal tank top or shirt. This will keep the sun off your arms and it’ll keep you cool. Forget polyester anything. Linen fibers are long and moisture wicking due to the properties of the plant its made from and you’ll literally feel a very light cooling effect just by touching it. Even better option is to moisten your shirt with water when you’re outside, if you can, because the water evaporating + the linen fibers will keep you so unbelievably cool it’ll be like upper body air-con.

    Skip shorts, even though it’s tempting to expose more skin to keep cool. Go for long linen pants, something loose and flowy if possible. As the fabric moves around while you walk, it’ll cool you even further. Lightweight cotton is also a good option.

    Linen blends are okay - I’d skip linen-polyester, personally, because there is nothing that traps heat like polyester fabric (it’s just plastic), but your mileage will vary. My favorite is linen-rayon because it moves and drapes very nicely, and linen-cotton is quite nice too c:

    Lastly, get yourself a wide brimmed hat to protect your scalp and face from sun, or you can wrap a lightweight scarf over your head and drape it around your neck and then just wear a lot of sunscreen on your face. Remember to reapply every two hours if you’re out in the sun. Sunscreen on your hands too. Cotton socks and cotton underwear will prevent any fungal issues (if you’re going to be in hot weather, I recommend packing an extra pair of each to switch into partway through the day). And lastly… my best trick, taught to me by my partner: scrap of linen cloth or a linen scarf soaked in water and draped around your neck. Trust me. It feels HEAVENLY. A cotton rag will also work if that’s all you’ve got!

    TL;DR: dress in long layers made of linen which will keep the sun from touching your skin and naturally cool you off c:

  • GalacticGrapefruit@lemmy.world
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    18 hours ago

    Greetings from the US! Desert-dweller here.

    Sunburn will destroy your skin’s ability to produce sweat, making you more vulnerable to heat exhaustion and heat stroke. You’re smart for reaching for a good shirt instead of peeling it off.

    A good hot-weather shirt will be made of cotton or linen, have long and loose sleeves, and be easy to button up or button down (to let the wind circulate so your sweat can dry). It should be a light color. If it has underarm vents, so much the better. Pair it with a floppy sun hat (like a gardening hat or a hiking hat) to keep the sun from singing the thin skin on your scalp and nose.

    Neck gaiters and handkerchiefs are nice because you can soak them in water and tie them around your neck to help cool off. But if you’re indoors most of the time a DIY neck cooler is easy to make, especially in bulk. You can always donate extras to elementary schools and nursing homes, to help keep more vulnerable people cool for longer.

    Gloves are optional, since skin on your hands tends to heal fairly fast, but if you’re an elder or want to protect your hands anyway, a pair of garden gloves will do you fine. Good clean socks and good breathable walking shoes will be better for protecting your feet from sweat than pleather loafers. Sandals are an option, but be aware that your feet and lower legs will burn just as badly, and sunburned feet hurt like hell.

    Protect your eyes! UVA/UVB rated sunglasses reduce your risk of various age-related eye diseases, especially if you spend a lot of time looking at concrete on a bright hot day.

    I’m not saying dress like a cowboy. Dress like a gardener or a groundskeeper. Try and copy what people who spend all day outside wear on a regular day.

  • grue@lemmy.world
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    2 days ago

    Clothing with a UPF rating just means its level of protection has been measured; it doesn’t necessarily imply unrated clothing doesn’t protect also. That is to say, I don’t think sun protective clothing has any high-tech coatings or other special sauce the way waterproof/breathable clothing does.

    Just wear something made of synthetic fiber and/or with a dense weave, colored a dark color, and that covers as much skin as possible. And most importantly, a wide-brimmed hat.

    Sources:

    • nocturne@slrpnk.net
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      2 days ago

      Just wear something made of synthetic fiber and/or with a dense weave, colored a dark color

      Why dark colors? All of my sun clothes are as light of a color as I can possibly find so they reflect the sun instead of absorbing it.

      • ProdigalFrog@slrpnk.net
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        2 days ago

        From what I understand, the dyes used in dark colors tend to be less transparent to the wavelength of UV light, and thus absorb some of the UV instead of letting it through. As a side effect, that also makes them heat up more, but the skin is technically more protected (assuming a like-for-like garment, as it’s likely that a thick white shirt will still be more protective than a thin black one).

        Looking into it again for this comment, it appear that all color dyes offer some UV protective effect in clothing, and the more intense the color, the more protective it can be (though still varies by the specific color itself). There’s a more in-depth explanation of how that works in this scientific article, under section 6.6.2. I’ll put it in a spoiler for convenience.

        How Dye blocks UV

        The UVR protecting ability of the dye sources depends upon absorption characteristics of the functional group present in the chemical structure. Sankaran et al. reported that the UVR protection ability of cotton fabrics was effectively improved when dyed with vegetable and animal dyes from madder, indigo and cochineal [79]. Some direct, reactive and vat dyes with darker shade are capable of giving a UPF of greater than 50 due to the nature of dye-fibre bonds. Multiple studies investigated that the potential role of few natural dyes like curcumin and onion skin dye on fibre or fabric by providing UV protective characteristics. The combinational effect of dyes and UV absorbers together on fabric can also reduce the transmission of UVR. The dye shades substantially increase the UPF value of bleached cloth when compared with non-bleached fabric [43,46,74]. Although, light colours reflect solar radiation more efficiently than dark ones but part of the radiation penetrates more easily through the fabric. Since the dye’s absorption bands extend to UVR, all types of dye function as UV absorbers (280–400 nm). The capacity of dyes to raise a fabric’s UPF depends on the extinction coefficient. Another experimental result revealed that the colour depth and dye concentration are the most essential factors influencing the UV protection property of cotton knitted fabrics. Therefore, the UVR blocking ability of textiles are enhanced with increase in ingredient concentration with either a dye or pigment or a delustering agents or other additives [80,81].

        But the construction of clothing (how dense or thick the weave is, or if it’s treated with something to give it a UPF rating) and what it’s made of appears to matter more for UV blocking overall than the color does. Cotton, linen and rayon appear to offer less protection than wool, polyester, or nylon (synthetics feel kinda gross to wear in hot weather though, IMO). A blend can help make-up for that, though then there’s the problem of microplastics every time you wash them, so personally I still stick with natural fibers.

    • Peppycito@sh.itjust.works
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      2 days ago

      The structure of the cloth in UV clothes is designed to be opaque to light while being cool, breathable and quick drying. I’ve never gotten a sunburn under my blue jeans and I’m sure they have a quite high UPF, but they are not sun gear in my opinion.

  • CompactFlax@discuss.tchncs.de
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    2 days ago

    Heat and UV are correlated but weakly. It’s entirely possible that an early spring day with cool temperature and light breeze has a higher UV levels than a cloudy day with 35°.

    You don’t need specific SPF clothing to get protection.

    This has a good discussion about spf clothing. https://www.nytimes.com/wirecutter/reviews/best-sun-protection-clothing/

    My personal preference is to seek shade and wear sunscreen when it’s intolerably warm, rather than to add tight weave clothing, but to each their own.

    • BloodMuffin@lemmy.ca
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      1 day ago

      i thought UV rays generally are strongest when the sun is directly overhead, like at noon in june (in the northern hemisphere)

  • Pencilnoob@lemmy.world
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    2 days ago

    Sun hoodies are made of a poly blend that is white, reflects a lot of sun, and is rated to keep you from getting burned through clothes which can happen with regular cotton or linen if you’re in the full sun all day. I’ve worn them all day in full sun and never get burned or even tanned on my shoulders.

    Amazon and Alibaba sell them for like 20-50 euros. I like getting ones with thumb holes, a hood, and is at least 1-2 sizes too big because they are better when they drape and let the air in, and they are hard to remove when soaked in sweat.

    They’ll be rated like UPF 50+ which just indicates high resistance. You want higher than 30+ at least.

    The brand I’ve used for the last few years also makes them with a hood that has a built in lower face cover / balaclava. This is much warmer but very handy at keeping off the sun. I don’t use that kind, but I’ll use a high UPF white Buff neck gaiter to go over my lower face or forehead to hold the hood on. YMMV.

    I’ll also use a wide brimmed floppy hat that will at least cover my upper face and nose, and I’ll wear sunscreen to an all day sun event on my hands and face. Otherwise I burn fast and it’s very unhealthy for skin aging and cancer risk.

  • nocturne@slrpnk.net
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    2 days ago

    this is the brand i get here in the states. I am in New Mexico, we get our fair share of sun and heat. These shirts are thin, and relatively cool. They are upf 50 i believe.

    • ProdigalFrog@slrpnk.net
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      2 days ago

      While looking to see if they mention what those shirts are made of (doesn’t seem like they mention it anywhere, unless I’m missing it), I did notice one of the pictures says it’s treated to be water resistant, which unfortunately could mean they’ve been coated with a PFAS containing repellent, which from what this test showed, appears to come off and potentially contaminate the environment somewhat :(

      Could be they use something else, but I think PFAS containing stuff is still the most common.

        • ProdigalFrog@slrpnk.net
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          14 hours ago

          Cheers for taking the time to do that, nocturne :)

          Surprised it’s not a blend, since full polyester I would’ve thought to be uncomfortable in high heat, but I guess those little holes throughout the fabric really do allow it to breathe and negate that effect?

      • nocturne@slrpnk.net
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        2 days ago

        I am not a fan of the water repellent nature of them. But other than that they are the best sun shirts I have found otherwise.

  • DudeImMacGyver@kbin.earth
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    2 days ago

    I have an REI Sahara sun hoodie along with some Columbia omnishade vented fishing shirts and vented sunblocking pants from Ex Officio: They’re all effective and have kept me safe in 100F+ heat indexes from Vegas to New Orleans at the height of summer.

    Straw hats help and cold wet towels are good too (especially in dry heat).

    You can wet your clothes too, but that also reduces how much they shield you from UV.

  • ArgentRaven@lemmy.world
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    2 days ago

    You want to find lighter color (more reflective) long sleeve shorts with buttons and vents. Vents on your back help a lot for air flow. Either they’re called Sun Shirts or Fishing Shirts. The UPF rating isn’t going to change much between brands and really doesn’t matter as much as it doesn’t equate to the US SPF that we use for sunscreen all that much anyway.

    You can get a good idea as to what to look for at websites like Bass Pro Shop, Academy, Scheels, and similar.

    Here’s one my father uses on the regular https://www.basspro.com/p/world-wide-sportsman-ultimate-angler-long-sleeve-button-down-shirt-for-men

    However, there’s Magellan brand ones at academy he also uses.

    Keep in mind your neck will still get sunburned, as well your upper knees if you wear shorts. Plus your hands. And ears. You can wear a cowboy hat, or a large brimmed hat, or one with a drape over the back neck. But you’ll have to wear sunscreen on your hands, at least. And feet if you’re wearing sandals.

    And that’s all they really do. Prevent you from using sunscreen all over. They’ll be hot like any article of clothing, but they’ll also save your skin like most articles of clothing as well. And get better air flow.

    I personally use a hooded, loose fitting sun shirt made of nylon, but it has no vents and gets hotter. It’s better than just wearing a long sleeve shirt, though. I should buy a real sun shirt with better ventilation, but they’re kind of expensive.

  • Korhaka@sopuli.xyz
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    2 days ago

    Haven’t got one yet but have been thinking of getting a rash vest, it’s more for surfing/water sports though. Not sure what the material is like for daily wear. They usually have SPF ratings though so it would work for that.

  • ThisGuyThat@lemmy.world
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    2 days ago

    Don’t know if they sell in the EU, but Columbia’s PFG sun gear is good. Neck gaiters and a hat if you want face protection. Wear it all the time for fishing in the sun.

  • tjoa@feddit.org
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    2 days ago

    So are you having problems with sunburn under your clothes? Or what are we trying to fix here?

    • alavar@slrpnk.netOP
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      2 hours ago

      Skin cancer. But you know, I also like to be protected from sun while not being fried alive inside of my clothes.

  • iceberg314@slrpnk.net
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    2 days ago

    I love me some sun hoodies! Obviously great for hot sun on a hot dry day. But also they seem to help with mosquitoes.

    When it gets cold at night, a sun hoodie is better than nothing to help you stay warm. They work well as a thermal underlayer too.

  • Tiresia@slrpnk.net
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    2 days ago

    Billions of people live in climates where they regularly get more sun and heat than this heat wave.

    Look into tropical fashions. Maybe a kurta would work for you.