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Person lifting a white UPF 50+ Long-Sleeve Active Tee to show their bare back
UPF 50+ Long-Sleeve Active Tee infographic
Runner in the navy UPF 50+ Long-Sleeve Active Tee on a woodland trail
Two runners training on a beach, one in the white UPF 50+ Long-Sleeve Active Tee
Three walkers on a sunny coastal path through gorse, two wearing the UPF 50+ Long-Sleeve Active Tee in white and blue

UPF 50+ Long-Sleeve Active Tee

£35.00
Chosen by British Mountain Guides for summer days in the Alps.
Your arms covered on long days out, with no sunscreen to top up.
  • Light and breathable, with four-way stretch
  • Wicks sweat and dries quickly
  • UPF 50+: blocks at least 98% of sunburning UV
  • In the fibre, not a finish that washes out
CHOOSE A COLOUR: Blue
CHOOSE YOUR SIZE: XS

Unisex. Loose fit. Want it closer? Size down

31 in stock
Bundle & save 15%
SPF 50+ Moisturising Lip Protector
Free Lip Protector with every order (worth £7)
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FREE DELIVERY
(orders over £25)

TRACKED DELIVERY
(2-3 working days)

30-DAY MONEY-BACK GUARANTEE

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a question
CHOOSE A COLOUR: Blue
CHOOSE YOUR SIZE: XS

Familiar?
We fixed that.

Long days out, and your arms and shoulders take the most sun.

  1. Shoulders and arms burn first.

    On a long day out, your shoulders, arms and the back of your neck get the most sun, and one coat of sunscreen won't last the day.

    The fix

    UPF 50+ from wrist to neck.

    Long sleeves in UPF 50+ fabric block at least 98% of UV for as long as you wear it, with nothing to top up.

  2. Long sleeves usually overheat you.

    Most long-sleeve tops trap heat, so the sleeves get pushed up or come off, and your arms are out again.

    The fix

    Light and loose, so air moves.

    A light, breathable knit in a relaxed cut with a dropped shoulder, made to cover your arms without overheating.

  3. Most UV kit is a chemical finish.

    Many UV-protective tops get their rating from a treatment sprayed on the fabric, and it fades with washing.

    The fix

    Protection that outlasts the wash.

    The UPF 50+ is in the fibre and the tight knit, not sprayed on, so washing doesn't take it out.

Trusted by Olympians. Made for everyone.

From elite sport to everyday life.

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Why we made it

For the days you lose track of time outside.

In a US study of people who'd had melanoma, wearing long sleeves was one of only two habits linked to fewer sunburns. Covering up only works if you keep it on, so we made a long-sleeve top you'd choose to wear anyway.

Relaxed fit. Size down for closer.
Fit guide

Relaxed fit. Size down for closer.

A dropped shoulder and a roomy body, cut to sit loose. Most customers find it comes up big: between sizes, size down and it'll still be relaxed. Every colour is cut the same. It's unisex, so go by your chest measurement in the size guide, not a dress size. Tall, with long arms? A few customers find the sleeves on the short side. Not right? You've got 30 days to exchange or return it.

PROTECTION IS BUILT IN.

Our UPF 50+ fabrics block at least 98% of sunburning UV. It's in the fibre and the knit, not a finish that washes out.

WHAT'S IT MADE OF AND WHY?
  • UPF 50+, no finishes or treatments: blocks at least 98% of sunburning UV. The protection is built into the fibre and the knit, not a finish that washes out.
  • 36-gauge high-density jacquard knit: 36 needles to the inch make a fine, tight knit, so very little sunlight gets through the gaps.
  • 90% polyester matt yarn: polyester itself absorbs UV, and the fine, matt yarn feels soft with no plasticky shine.
  • 10% elastane for four-way stretch: it gives in every direction, so it moves with you on the bike or the trail.
  • Wicking and quick-drying: pulls sweat off your skin and dries fast, so a long day doesn't leave you in a cold, wet top.
  • 180 GSM, 2% shrinkage: 180 grams of fabric to the square metre gives it body, and it shrank just 2% in testing, so it keeps its fit wash after wash.
OTHER USEFUL INFO
  • Unisex
  • Sizes XS to XXL
  • Navy, white and blue
  • About 210g in a medium
  • Gentle machine wash at 30°C and hang to dry
  • No tumble dryer, iron or bleach
FABRIC INFORMATION

90% polyester, 10% elastane

Tested out there.

4.8 · 90 verified reviews
  • “Bought for a holiday to Indian Ocean. Wore today for lengthy kayak tour. Absolutely perfect.”
    Mark O, KayakerVerified buyer
  • “Comfortable, breathable, keeps the sun at bay and looks great!”
    Robert H, Happy customerVerified buyer
  • “Love the texture of the top. It's already been to the outer Hebrides. Great shirt, ideal for running, cool and loose fitting.”
    John S, Outer Hebrides testedVerified buyer
AS FEATURED IN

Here's how we're different.

LifeJacket
Sunscreen and a cotton shirt
UV rating
» Rated UPF 50+The top rating a fabric can carry.
No UV ratingFewer than 3 in 10 cotton fabrics reach UPF 30.
Top-ups
» No top-ups for your armsProtection you don't have to reapply.
At least every two hoursOnly 27% of UK skin specialists keep that up.
Coverage
» Even cover, every timeIt doesn't depend on how much you put on.
Spread too thinMost people use a fifth to half the tested amount.
Feel
» Nothing to rub inYou wear it, so there's nothing to put on.
Cream from wrist to shoulderNot everyone likes the feel of it.
Advice
» Health bodies' first choiceThe WHO puts clothing before sunscreen.
For skin you can't coverThat's where the WHO says sunscreen goes.

Which one's for you?

Our closest alternatives, side by side.

Ask us a question
You're here
UPF 50+ Long-Sleeve Active Tee
£35.00
4.8 (90)
A long-sleeve tee with a loose, relaxed fit. UPF 50+
Cycling, walking and long days outside
Covers your arms without overheating
UPF 50+ Active Tee
£30.00
4.9 (62)
A short-sleeve tee with a close, athletic fit. UPF 50+
Running, sport and everyday wear
Keeps your back and shoulders covered, arms free
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UPF 50+ Long Sleeve Active Hoodie
£42.00
4.7 (18)
A long-sleeve hoodie with a loose, relaxed fit. UPF 50+
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The hood covers your scalp, ears and neck
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UPF 50+ Long-Sleeve Collared Top
£42.00
4.8 (125)
A soft quarter-zip top that feels like cotton. UPF 50+
Golf, sailing and smart casual
Smart enough to wear off the trail
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UPF 50+ Rash Vest
£42.00
4.7 (74)
A lightweight rash vest with a snug fit. UPF 50+
Beach and pool days with the kids, swimming, surfing and paddling
One less thing to top up between swims
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HOW TO USE.

  1. Wear.

    Pull it on before you head out. Sunscreen still goes on your face, neck and hands.

  2. Cover.

    Keep the sleeves down when the sun's strongest, between 11am and 3pm.

  3. Pro tip.

    Sunscreen can mark a white collar. Put yours on first and let it dry before you pull the top on.

COMPLETE YOUR KIT.

These go perfectly with your pick.

Build your own bundle
  • New sizes
    SPF 50+ Sun Gel
    From £16.00

    A light gel that dries in seconds, so you'll actually use it.

    4.8(485 reviews)

    Choose options
  • Anti-Chafe Bar
    From £13.50

    Prevents skin rubbing so you aren't forced to stop. No petroleum.

    4.9(45 reviews)

    Choose options
  • Aluminium Bottle Refill
    £2.00

    Takes your sunscreen out with you, so you can top up.

    4.5(13 reviews)

IN THEIR WORDS.

GOOD TO KNOW.

Who is it for?

Anyone out for hours in strong sun who wants their arms covered: walking, running, cycling, kayaking, gardening or working outside.

What's it made of?

90% polyester and 10% elastane, in a tight, high-density knit. Its UPF 50+ protection is built into the fibre and the knit, not a finish that washes out.

How soon does it protect?

As soon as it's on. There's nothing to wait for, and nothing to top up on the skin it covers.

Is it chemically treated? Will the protection wash out?

No. The protection is built into the fibre and the knit, not a finish that washes out. Sprayed-on UV finishes fade with washing: in a 2023 test, finished garments lost around three-quarters of their protection over 50 washes.

Do I still need sunscreen?

Yes, on the skin it doesn't cover: your face, neck and hands. Reapply that at least every two hours, and after sweating or towelling.

Can I wear it more than once between washes?

"Stays fresh. I wore the top 3 times on long hilly walks before I washed it," says Joanne S.

When will I get my order?

We try to get every order out the same day up until 4pm during the week. From then, it usually takes 2-3 working days to arrive.

What if it's not right for me?

You're covered by our 30-day money-back guarantee. Send it back unworn and in perfect condition for an exchange or a refund: email hello@lifejacketskin.com and we'll sort it.

Where do you ship?

We ship to the UK, the Isle of Man and the Channel Islands using a Royal Mail tracked service.

Arms covered, no reapplying.

Full arm coverage without overheating, with UPF 50+ in the fibre, not a finish that washes out.

  • Free delivery over £25

  • 30-day money-back guarantee

  • Usually 2-3 working days

  • Trusted by athletes, made for everyone

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