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Women's Coastal Convertible Swim Shirt UPF 50+

Women's Coastal Convertible Swim Shirt UPF 50+ is rated 4.3 out of 5 by 111.
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  • UPF 50+
  • Fits close to body
  • Convertible shirt: tank-top under removable crop-top
  • Thumbholes for additional hand coverage
  • Droptail hemline on tank top
  • Flatlock seams to prevent chafing
  • Aqua SUNTECT®: Chlorine and saltwater resistant with 4-way stretch
  • Polyester
  • Length 25" (size medium)
  • Easy care: machine wash, line dry
  • Imported

Recommended for your days in the water, at the pool, lake or ocean! Great for leisurely lap swims or water aerobics.

Avoid active fitness, not moisture-wicking and may cause overheating.

Sleeves or no sleeves? The versatile Convertible Swim Shirt lets you decide! You get two looks in one with this tank top featuring a removable long sleeve crop top. The athletic fit, four-way stretch and thumbholes make it great for activity in the sun, along with its quick-dry, chlorine-and saltwater-resistant fabric, perfect for when you want to jump in and swim.

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Recommendation Content

All Coolibar fabrics have been approved as an effective UV protectant for covered areas. Coolibar is the first clothing company to receive The SCFs Seal of Recommendation.

Fabric Details

aqua SUNTECT® Chlorine and saltwater resistant with 4-way stretch.

Avoid active fitness, not moisture-wicking and may cause overheating.

Coolibar’s sun protective clothing is designed to be worn in the sun and to provide excellent UV protection. If you have any questions about size, fit or style, talk to one of our Customer Service Representatives at 1-800-926-6509. They'll be happy to help, as well as offer expert advice on coordinating sunscreen hats with your wardrobe. 

Match your measurements (in inches) to the chart below. If your measurements fall in between two sizes, you may prefer the larger size. 


SIZE 2 4 6 8 10 12 14 16 18 20 22 24 26
BUST (inches) 32 33 1/4 33 1/2 35 36 1/2 38 39 1/2 41 43 45 47 49 51
WAIST (inches) 25 26 26 1/2 27 1/2 28 1/2 30 31 1/2 33 35 37 39 41 43
HIPS (inches) 35 36 36 1/2 37 1/2 38 1/2 40 41 1/2 43 45 47 49 51 53


HEAD (inches) 21 1/8 - 23 1/4 23 1/4 - 24 24 3/8 - 25 1/8 22 - 24 3/4
HEAD (cm) 54 - 59 56 - 61 62 - 64 56 - 63
HAT SIZE 6 3/4 - 7 3/8 7 3/8 - 7 5/8 7 3/4 - 8 7 - 7 7/8
Due to the range of fabrics and styles, each hat fits slightly different. See individual hat sizing ranges on their product pages. Our One Size hats are designed to fit most.


Circumference (inches) 6 - 7 7 - 8 1/2 8 1/2 - 10
Measure circumference of hand around fullest part just below the knuckles, excluding thumb. Use right hand if right handed, and left hand if left-handed. Measure hand in inches and refer to the sizing chart for your glove size. Use the larger number to determine your size. People with extra long fingers, or who would like a looser fit should consider ordering a size up.


BICEP (circumference) 7 1/4 9 1/4 11 1/4 13 1/4
WRIST (circumference) 5 1/4 5 1/2 6 6 1/4
SLEEVE LENGTH 18 20 22 1/2 22 1/2


30C, 30D *
32A, 32B, 32C, 32D *
32DD, 34A, 34B, 34C *
34D, 34DD, 36A, 36B, 36C *
36D, 36DD *
38A, 38B, 38C, 38D *
40A, 40B, 40C, 40D *
42A, 42B *
42C, 42D *

The measurements on our size chart are very similar to most major clothing companies. However, we generally allow for a relaxed fit - geared for outdoor activity, travel or a casual outing. Pants, skirts, blouses and polo shirts have extra room for comfort and are not body hugging. 

When fitting jackets, cover-ups or any outerwear, our fit model is wearing the appropriate under layers that we would expect you to be wearing. You do not have to "size up" - we have done that for you. 

Never try to measure yourself. Seek the help of a companion and use a soft tape measure. 

Height: Stand in stocking feet, with feet together, back to the wall. Measure from top of head to the floor. 

Arm: Bend arm to 90 degrees. Place hand on hip. Start at center of back of neck. Measure across the shoulder to the elbow and down to the wrist. Number of inches equals your sleeve length. 

Bust/Chest: With the arms relaxed down at sides, measure fullest part of bust/chest, keeping tape parallel to floor. 

Hip: Stand with heels together, keeping tape straight and parallel to the floor. Measure around fullest part. 

Neck: Measure around base of the neck (the lowest point of the neck). Number of inches equals the neck size. 

Inseam: Take a pair of pants that fits you well. Measure from the crotch seam to the bottom hem. Number of inches equal inseam length. 

Rise: Start the tape at the center back waist, run the tape between your legs, pulling comfortably at the crotch and up your natural waist. Total measurement is your rise. 

Waist: Measure around your waist, against your skin (not over your shirt or pants) at the height you normally wear your pants. 

Head: Measure around your head, from the center of your forehead, keeping tape straight and parallel to the floor. Measure around fullest part.

Rated 5 out of 5 by from I Love the Convertible Swim Shirt My husband gave me this as a gift a while ago. I love it so much I bought two more in different designs. I can wear each piece separately or together. The shrug is perfect. When worn alone, it comes to the top of my suit all the way around except in the exact front where it shows a little bit of sexy cleavage. Yes, when your arms are straight up in the air there is a bigger gap, so it would be an issue if you play a lot of water volleyball, but I don't. The tank top goes over your bathing suit for more sun blockage and it's easy to remove to get more sun. With both pieces together, you are covered but still comfortable. I am 5'5" with a long torso and short legs and wear an XL for reference. My husband wears the swim jacket and we both have had people at the beach ask us where to buy our items.
Date published: 2018-11-10
Rated 5 out of 5 by from My Swimwear I love the shirt I bought! It is perfect for my needs. Both modest and changeable. The swim crop top can be removed for it to be a tank swim top. Perfect!!
Date published: 2018-03-28
Rated 4 out of 5 by from Love the tank, the topper needs work I love Coolibar swim shirts. My husband and I both live in them around water and on vacation. I wanted to keep this, but had to return. The tank is great and fits nicely over a bikini top for when you want more sun protection, but the sleeves are too short under the arms. Every time I take a paddle stroke my armpits would be exposed and afraid of chaffing. It you are just looking to lounging around, it might fit the bill, but not for active swimming or water sports. Coolibar, please make sun camis and tanks to wear over bikini tops! And please reinvent this product. It would be fun to buy them separate and mix and match colors!
Date published: 2018-02-21
Rated 4 out of 5 by from Nice product Today I received my clothes. I had been very wrong thinking sizes !!! To big for me... How can I change the clothes? Help me...
Date published: 2018-01-17
Rated 1 out of 5 by from Not what I expected Wish I could return it. It was not clear what it was on the site. I have loved my other Coolibar products but this is not what I expected.
Date published: 2018-01-04
Rated 2 out of 5 by from Cute top and Great Idea but ... The feel of the fabric is so soft and creamy! I love the tank, but it needs a good bra under it as it is too thin and not appropriate for water aerobics. The idea of the long sleeve topper is a good one, but it is too short and should come below the bust line instead of just barely covering the decollete and showing the skin when you move. I need to be covered to protect from pre-skin cancer but want to look nice and have a nice fit when I work out. Please add the longer topper and the tank with a good bra. Will be returning.☹️
Date published: 2017-12-28
Rated 4 out of 5 by from Nice concept, but... Bought two of these when they went on sale and overall, am pleased with the purchase. The fabric choice is terrific and dries quickly in humid weather. I give Coolibar an A+ for that. Where the item fell short was in the design of the shrug. For a tall gal (5'9) with long arms, the thumb holes are completely useless because the sleeves cut into your hand when you use them. I compared the sleeve length of the shrug with that of the Long Sleeved Swim Shirt and discovered that the shrug's sleeves were an inch shorter. If you are planning on redesigning this item, please consider making the shrug's sleeves the same length as the Long Sleeved Swim Shirt's. Not being able to use the thumb holes isn't a big deal, but it would be nice. As others have reported, the top itself is short in length and when you lift your arms you expose some skin. I just apply some sunscreen to that area and I'm fine. But it would be nice to see a slightly longer version of this top -- perhaps one that covers the bust and is adjustable over that area of the body. I love that the tank top is fitted, not to mention quite flattering.
Date published: 2017-08-19
Rated 3 out of 5 by from NOT a swim suit Love the material, concept, and most of the design. High quality and beautiful colors. The "swim shirt" name is a bit misleading as this is a super thin swimsuit material--but you can't wear it without a bra or bikini top. This completely ruins the lines of the tank (it's even worse if you have any color other than black). The shirt is unlined and in the case of the coral base, see-through. I also agree the sleeves/cover up could be longer, as it barely covers the arm pits (and I went up one size), so you can't be active in it (even swimming!) without exposing skin.
Date published: 2017-08-16
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