Two hours into a lake swim or a beach afternoon, the wrong shirt turns into a wet, heavy rag that clings to your shoulders and stops breathing. A good sun shirt for swimming has to do two jobs at once: block UV while you are in the water, and dry fast enough that you are not shivering on the walk back to the car. The listings that matter state a real UPF rating and name the fabric, because those two details decide how the shirt feels after it gets soaked.
I looked at the Best Sun Shirts For Swimming by comparing stated UPF ratings, fabric content, seam construction, and how each cut handles movement in the water. The ones worth considering use UPF 50+ fabric, quick-dry polyester, and flat seams that reduce rubbing during long paddle strokes or repeated laps.
My overall pick for best sun shirts for swimming is the Boladeci Swim Shirts for Men Rash Guard Long. It pairs UPF 50+ fabric with a lightweight, quick-drying polyester build and a tag-free design that cuts down on neck irritation. My top picks are just below.
Best Sun Shirts For Swimming at a Glance
| Product | NT Score | ||
|---|---|---|---|
| Best Overall Boladeci Men's Long Sleeve Rash Guard with UPF 50+ | 9.8 | Check Price on Amazon | |
| Best for Snorkeling Ewedoos Men's Rash Guard Swim Shirt with Zip | 9.8 | Check Price on Amazon | |
| Best for Fishing Boladeci UPF 50+ Hooded Sun Shirt with Thumb Holes | 9.7 | Check Price on Amazon | |
| Best for Paddling Willit Men's Rashguard Swim Shirt with UPF 50+ | 9.7 | Check Price on Amazon | |
| Best for Warm Weather WENTTUO Men's UPF 50+ Sun Shirts 7 Pack Long | 9.7 | Check Price on Amazon | |
| Best for Sun Exposure NAVISKIN Men's UPF 50+ Rash Guard Shirt | 9.6 | Check Price on Amazon | |
| Best for Beach Days Liberty Imports 2-Pack Swim Shirts for Men | 9.6 | Check Price on Amazon | |
In-Depth Reviews
Boladeci's long sleeve rash guard is a lightweight polyester UPF 50+ sun shirt with slight stretch and quick-drying fabric.
Key Facts
- Material
- Polyester
- Sun Protection
- UPF 50+
- Color
- Black
- Size
- Large
Pros
- +UPF 50+ rating stated for long sun-exposed days
- +Lightweight polyester with slight stretch for movement
- +Quick-drying fabric transitions from swim to trail
- +Wrinkle resistance cuts care time on camping trips
Cons
- −Only one color and size listed, limiting fit options
- −No fabric weight or UPF test standard disclosed
- −Slight stretch may feel loose under a pack strap
Detailed Review
The Boladeci long sleeve rash guard is built around a UPF 50+ rating and a lightweight polyester fabric with slight elasticity. For long, exposed hikes or a full day on the water, that combination means one layer handles sun cover and dries fast enough to wear straight from a swim into a trail section.
I'd consider this for warm-weather trips where reapplying sunscreen every hour is impractical. The printed tag sutures are a small but real detail for anyone who has dealt with a scratchy neck tag on a sweaty climb, and the wrinkle resistance makes it easy to pack as a backup layer or camp sleepwear.
Worth knowing before you buy: the listing shows only one color and size, and no fabric weight or UPF test standard is disclosed. I see this working best as a dedicated sun layer for swimming, fishing, or hiking rather than a cold-weather base.
Ewedoos men's rash guard with UPF 50+ fabric, 100% polyester, and a zip back pocket for small essentials.
Key Facts
- Material
- 100% Polyester
- Sun Protection
- UPF 50+
- Zip back pocket on right side
- Color
- Sky Blue
Pros
- +Zip back pocket keeps small items secure
- +100% polyester wicks sweat and dries fast
- +UPF 50+ sun protection for long outdoor days
- +Long sleeves cover forearms without extra layers
Cons
- −No thumbholes or hand coverage on sleeves
- −Only one color and size shown in listing
- −Fabric weight not stated for hot-weather comfort
Detailed Review
The Ewedoos rash guard for men is built around a zip back pocket on the right side, a rare feature on a swim shirt at this level. That pocket gives you a place for a key or card during a paddle, a run, or a beach day without carrying a separate bag. The 100% polyester fabric is listed as moisture-wicking and quick-drying, which matters when you are in and out of water or sweating on a long hike.
Sun protection is rated UPF 50+, and the listing states the tightly woven fabric blocks 98% of UVA and UVB rays. Long sleeves cover the arms, so I'd consider this for snorkeling, fishing, or yard work where arms burn easily. The fabric is described as stretch-woven for free movement, which helps on a climb or a cast.
Worth knowing before you buy: the listing does not give a fabric weight or a temperature range, so I can't say how it feels in extreme heat or cold. Also, only Sky Blue in size Large is shown, and there are no thumbholes. I rate this a reasonable pick for warm-weather water days and light sun coverage.
Boladeci hooded long-sleeve sun shirt with UPF 50+, thumb holes, and 4-way stretch fabric for fishing, swimming, and summer trail days.
Key Facts
- UPF Rating
- UPF 50+
- Material
- 4-way stretch, moisture-wicking fabric
- Color
- White
- Size
- Large
Pros
- +UPF 50+ rating stated for sun-heavy days on open water
- +Thumb holes and hood cover wrists, neck, and head
- +4-way stretch and raglan sleeves allow free arm movement
- +Wrinkle-resistant fabric cuts ironing after washing
Cons
- −No fabric weight or UPF test standard disclosed
- −White color shows dirt and fish slime quickly
- −No size chart or fit guidance provided in listing
Detailed Review
The Boladeci hooded sun shirt lists a UPF 50+ rating, which the listing says blocks 98% of UV rays, plus thumb holes and a hood that extend coverage past the wrists and neck. That combination matters for long days on open water or exposed ridgelines where sunscreen wears off.
The 4-way stretch and raglan sleeves are the details I'd weigh most for fishing or paddling, since they let the shoulders rotate without the fabric bunching. Quick-dry, moisture-wicking fabric and a printed tag round out the comfort side for sweaty summer use.
Worth knowing before you buy: the listing doesn't state fabric weight, a UPF test standard, or a size chart, so fit and durability are hard to judge from the spec sheet alone. I'd consider this a reasonable pick for fishing, swimming, and summer trail days where sun coverage matters more than abrasion resistance.
A short-sleeve polyester rash guard with UPF 50+ and quick-dry fabric, in blue, size XL.
Key Facts
- Material
- Polyester
- Sun Protection
- UPF 50+
- Color
- Blue
- Size
- X-Large
Pros
- +UPF 50+ fabric blocks 98% of UVA/UVB rays per listing
- +Quick-dry polyester resists water absorption during swims
- +Flat-lock seams and tag-free collar reduce neck irritation
- +Raglan sleeves support full arm mobility for paddling
Cons
- −No fabric weight or thickness disclosed for layering decisions
- −UPF protection claim rests on listing wording, not third-party certification
- −Limited to one color and size per listing
Detailed Review
The Willit Men's Rashguard Swim Shirt is built around UPF 50+ fabric that the listing says blocks 98% of UVA and UVB rays, and that protection holds even when wet. For long days on exposed water or open trail, that matters more than reapplying sunscreen every couple of hours. The quick-dry polyester moves sweat away and resists absorbing water, so it stays light during swims or repeated paddle strokes.
Flat-lock seams and a tag-free collar cut friction at the neck and shoulders, which I'd consider a real plus for repetitive motion like paddling or casting. Raglan sleeves open up arm mobility, and the relaxed athletic cut avoids clinging when you exit the water. I see this working best for warm-weather paddling, fishing, or hiking where sun exposure is the main concern.
The main trade-off is that the listing gives no fabric weight or thickness, so I can't assess how it layers under a PFD or pack strap. It's also offered in one color and size here, and the UPF figure comes from the listing rather than an independent certification.
A seven-pack of tag-free polyester long sleeve shirts rated UPF 50+ with moisture-wicking, 4-way stretch fabric, sized Large.
Key Facts
- Material
- Polyester, tag-free, 4-way stretch
- Sun Protection
- UPF 50+
- Included
- 7 Shirts
- Size
- Large
Pros
- +Seven shirts cover a full week of rotation
- +UPF 50+ rating stated for long sun exposure
- +Tag-free polyester with 4-way stretch for movement
- +Lightweight fabric layers under a shell in cooler weather
Cons
- −Only Large size listed in this pack
- −No fabric weight or garment measurements disclosed
- −UPF protection depends on the fabric staying dry and intact
Detailed Review
The WENTTUO sun shirt pack ships as seven long sleeve shirts in light grey, light blue, white, dark grey, blue, dark blue, and black, all in size Large. The fabric is tag-free polyester with 4-way stretch, which matters most when you are casting, paddling, or reaching overhead and a stiff weave would bind across the shoulders.
The listing rates these UPF 50+ for UVA and UVB, and the moisture-wicking build is aimed at warm days when a cotton tee would soak through. I'd consider this set for travel where laundry access is limited, since a fresh shirt each day beats rinsing one in a sink.
Worth knowing before you buy: only Large is listed here, and the listing gives no fabric weight or garment measurements, so fit is a guess until it arrives. I see this working best for warm-weather rotation rather than cold-weather layering.
NAVISKIN Men's UPF 50+ Rash Guard Shirt in 100% polyester with flatlock seams and raglan sleeves for sun-heavy days on the water or trail.
Key Facts
- Material
- 100% Polyester
- Sun Protection
- UPF 50+
- Color
- Powder Blue
- Size
- X-Large
Pros
- +UPF 50+ rating covers skin without reapplying sunscreen
- +Flatlock seams limit rubbing on long sweaty days
- +Raglan sleeves remove shoulder seam pressure points
- +4-way stretch fabric moves with casting and paddling
Cons
- −No tall sizes listed for long-torso builds
- −Only one color and size shown in the listing data
- −UPF protection depends on fabric staying dry and intact
Detailed Review
The NAVISKIN Men's UPF 50+ Rash Guard Shirt is built around a 100% polyester fabric that wicks sweat and dries fast, which matters when you are casting from a boat or hiking exposed ridgelines in summer heat. The UPF 50+ rating is the headline spec here, and it covers the fabric itself rather than relying on sunscreen that washes off.
Flatlock seams and raglan sleeves are the details I'd weigh most for all-day wear. Flatlock stitching sits flush against the skin, so the shirt is less likely to rub during 8+ hour sessions, and raglan sleeves remove the shoulder seam that can dig in when you are paddling or swinging a club. The 4-way stretch helps with casting and climbing moves.
Worth knowing before you buy: the listing shows only Powder Blue in XL, and no tall sizing is mentioned. I see this working best for warm-weather water sports, fishing, and hiking where sun coverage and quick drying matter more than insulation.
Two-pack of loose fit men's short sleeve swim shirts in UPF 50+ quick-dry fabric, sized Large, in printed navy and black.
Key Facts
- Sun Protection
- UPF 50+
- Size
- Large
- Color
- Printed Navy/Black
- Included
- 2 Shirts
Pros
- +Two-pack doubles coverage for beach or boat weekends
- +UPF 50+ rating stated for extended sun exposure
- +Quick-dry, four-way stretch fabric suits swimming and paddling
- +Loose fit through chest and shoulders without compression
Cons
- −Loose cut adds bulk when layering under a PFD
- −Sizing runs roomy, so a tighter fit means sizing down
- −Limited color options in this printed navy and black set
Detailed Review
The UPF 50+ rating on these Liberty Imports swim shirts is the headline spec, and the listing states the fabric blocks over 98% of UV rays. For long days on open water or a bright beach, that is the layer I would reach for over a plain cotton tee. The two-pack format also means one shirt can dry while the other is in use.
The quick-dry, four-way stretch fabric is built to move between water and shore without hanging heavy, and the loose fit leaves room through the chest and shoulders. Smooth seam construction is a small but real detail for extended wear against skin.
Worth knowing before you buy: the roomy cut adds bulk under a PFD, and the listing notes sizing down for a tighter fit. I rate this a reasonable pick for beach days, fishing, and paddleboarding where sun coverage matters more than a snug profile.
FAQs
Can you wear a sun shirt in the pool or ocean?
Yes, most rash guards and swim shirts are designed for pool and salt water, and the UPF protection stays effective when the fabric is wet. Chlorine and salt can shorten the life of any stretch fabric over time, so rinse the shirt in fresh water after a swim day. A quick-dry polyester build like the ones here will not soak up water and feel heavy.
How do I choose between long sleeve and short sleeve?
Long sleeve gives full arm coverage for all-day sun, while short sleeve keeps you cooler for shorter swims and hot, humid afternoons. If you burn easily or plan hours on the water, long sleeve with UPF 50+ fabric is the safer bet for coverage. Short sleeve suits pool laps and quick beach sessions where you want more airflow.
Do sun shirts for swimming really replace sunscreen?
UPF 50+ fabric blocks about 98% of UV rays on the covered areas, so it replaces sunscreen where the shirt sits. It does not cover your face, hands, or lower legs, so you still need sunscreen there. Reapply sunscreen on exposed skin every two hours, especially after swimming or heavy sweating.
What should I look for in a swim sun shirt?
Look for a stated UPF 50+ rating, quick-dry polyester or a polyester blend, and flatlock seams that reduce chafing during long wear. A relaxed or athletic cut that allows arm movement matters more than a tight fit for swimming and paddling. If you also hike or run in the sun, the same features carry over to base layers for cold weather when you layer them under a shell.
Final Thoughts
The deciding factors for a swim sun shirt are the stated UPF rating, how fast the fabric dries, and whether the seams and cut stay comfortable after an hour in the water. Get those three right and the shirt disappears into the background of your day instead of becoming the thing you keep adjusting.
For most swimmers, the Boladeci Swim Shirts for Men Rash Guard Long is the pick to start with. It uses UPF 50+ fabric, a lightweight quick-dry polyester build, and a tag-free design that reduces neck irritation, which suits long beach days, lake swims, and mixed hiking and swimming trips. Skip it if you want a hood for extra neck and ear coverage, or if you prefer a loose, roomy cut through the chest and shoulders. Check the current price on Amazon and match the size to how you plan to wear it, because the right fit is what keeps a sun shirt comfortable from the first lap to the last.