Women's Interval Jacket UPF 50+

Women's Interval Jacket UPF 50+ is rated 4.2 out of 5 by 49.
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  • UPF 50+
  • Slightly fitted
  • Mockneck collar for added protection
  • Full length sleeves with thumbholes
  • Drop tail hem
  • Center front zipper opening
  • Two zipper pockets along front seams
  • Headphone eyelet on inside pocket bag
  • Flatlock seaming for comfort
  • 25 ¼” Body length (size medium)
  • Active Curva™ fabric: Lightweight and breathable with moisture wicking for quick dry performance
  • Cooltect™ technology accelerates moisture wicking to keep you cooler and more comfortable
  • Nylon/Spandex
  • Machine wash, tumble dry
  • Imported

Recommended for when you want to keep your cool and stay UPF 50+ sun protected while picking up the pace outdoors, including fitness, basketball, jogging, power walking, cycling, and other outdoor sports activities.

Avoid swimming, not chlorine and salt water resistant or water repellent.

Our Interval Jacket is slightly fitted and made from the same material as our yoga leggings. This jacket has great compression and a nice stretch that moves with you and helps you stay protected from the sun. Thoughtfully designed for extra coverage during movement, this sports jacket includes thumbholes, a drop tail hem and a mock neck collar. Fit details, emphasized with contrast stitching, give this fitness jacket a sporty-feminine look.
Fabric Details
Active Curva™ FabricActive Curva™ Fabric
Our Active Curva fabric helps you achieve optimal performance, comfort and coverage with moisture-wicking, quick dry Cooltect™ technology that cools your body as you break a sweat! This gentle compression fabric is engineered to move with your natural curves in figure flattering UPF 50+ coverage for outdoor yoga, biking, hiking and more.

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   BUST (inches) WAIST (inches) HIPS (inches)
XXS 00-0 31⅛-31¾ 23½ – 24½ 33¼-33⅞
XS 2-4 32-33¼ 25-26 35-36
S 6-8 33½-35 26½-27½ 36½-37½
M 10-12 36½-38 28½-30 38½-40
L 14-16 39½-41 31½-33 41½-43
XL 18-20 43-45 35-37 45-47
XXL 22 47 39 49
2X 24 49 41 51
3X 26 51 43 53


Due to the range of fabrics and styles, each hat fits slightly different. See individual hat circumferences in the Highlights section of the product page. Our One Size hats are designed to fit most.

HOW TO DETERMINE YOUR HAT SIZE: Measure around your head, from the center of your forehead, keeping tape straight and parallel to the floor. Measure around fullest part.


Circumference (inches) 6 - 7 7 - 8 ½ 8 ½ - 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.


SIZE (measure circumference) BICEP WRIST SLEEVE LENGTH
XS 5 ¼ 18
S/M 9 ¼ 5 ½ 20
L/XL 11 ¼ 6 22 ½
XXL 13 ¼ 6 ¼ 22 ½


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          

PLEASE NOTE: 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 Best Purchase This jacket is light enough to wear in the heat and so comfortable!
Date published: 2020-08-17
Rated 2 out of 5 by from Not what is described. This jacket wasn't the light easy to wear piece I was expecting. I wanted something to wear stand up paddleboarding that would keep me cool. I tried this jacket out and found it to be hot even on cooler days. I wouldn't recommend buying this to break a sweat in. I also don't like the hem at the bottom of the jacket. It is just strange and not flattering.
Date published: 2020-08-13
Rated 4 out of 5 by from Quality & suggestions Lightweight & great coverage. Not impressed with zipper quality. Would like more neutral color selection such as drab olive or tan earth tones
Date published: 2020-08-09
Rated 5 out of 5 by from Get this jacket!!! I really like this jacket. It feels like a perfect balance of "cool venting" when I need it with the right amount of "take the chill off." This is a very figure flattering jacket. I am 5'4" and 116 lb. I ordered a medium because I don't like a skin tight fit and it turns out it was the right decision for me. So impressed with this jacket! So comfortable for many activities with a nice stretch for movement, too. I need those pockets and just wish I could have a chest pocket for easy access to my cell phone, although it does fit in the lower pockets.
Date published: 2020-07-04
Rated 4 out of 5 by from I would get it if there was more hand coverage Would love to see hand coverage like on the Relay Pullover. I'd get it if it did.
Date published: 2020-06-28
Rated 5 out of 5 by from Comfy jacket Exactly what I was looking for! Perfect for driving, gardening, hiking, beach walks. It is remarkably cool and takes the worry of sun damage out of outdoor activities.
Date published: 2020-06-15
Rated 5 out of 5 by from Interval jacket black Love the style. Fits as stated........will use it a lot for early morning walks to afternoon boating
Date published: 2020-05-03
Rated 5 out of 5 by from Interval Jacket White M Solid I really love this is comfortable and is wonderful when I do my walking since it has the wicking feature...I wish I would have gotten a small but I am enjoying the jacket
Date published: 2020-05-03
Rated 4 out of 5 by from Cut small I felt that this jacket was a little small for the sizing. I usually wear an XL and it was snug. However I did not want to pay the return shipping and then additional shipping to get a better size so it looks like I'm going to have to lose some weight in order to fit into the XL. Other than that it is a cute style.
Date published: 2019-08-30
Rated 5 out of 5 by from Great Outdoor Jacket I bought this to wear when riding my motorcycle; so keep me safe from the suns rays but also not uncomfortably hot; this works on both levels. It is really comfortable and flattering as well.
Date published: 2019-07-16
Rated 5 out of 5 by from Lightweight, stylish and comfy I bought the jacket a month ago and wear it all the time. I wear it driving, walking the dogs, and even to work. I’m am teacher and the last 2 weeks of school we are outside all the time. This jacket and the other wrap I bought are perfect!
Date published: 2019-06-10
Rated 2 out of 5 by from Good fit but zipper quality not there First time wearing this jacket and I can’t zip up my jacket. The fit is nice and fabric feels comfortable, but for 120$+jacket I expect a little more quality put into making the zipper a little more sturdy and easy to zip close the jacket . It’s such a hassle to have to return things .
Date published: 2019-05-25
Rated 5 out of 5 by from Perfect! This is my new favorite jacket! It is very flattering because it's semi fitted yet comfy & a great lemgth! Love the zip pockets & thumbholes. Fabric is a bit heavier but so far it's been perfect! It's so comfortable I forget to take it off indoors ;-) For me, a previous fan of the shorter hoodie & longer relaxed fit jacket, this interval jacket is perfection!
Date published: 2019-05-04
Rated 4 out of 5 by from Overall good I usually wear a L in Coolibar but bought this XL so it would be looser. I definitely wouldn’t get it any smaller and even with going one size up it is very fitted. Lightweight with great soft fabric. I wish it had a straight hem and was longer all around. Overall though I like it a lot and kept it.
Date published: 2019-04-28
Rated 5 out of 5 by from Cool, light, comfortable, pockets & protects! One of the best pieces of clothes I’ve ever bought! I have severe photosensitive lupus, which means I have to stay covered up all the time, night and day, and I wear black because it’s better at blocking uvb rays. I live in Arizona where the temps regularly reach over 120 (although, thankfully, right now, we’re in the 80’s) and some days I dread putting on another layer. But this jacket *breathes*! And it’s so comfortable that it feels like a second skin! And the pockets! So smooth that no matter what you put in them they lay flat and so comfortable against your body. I own two of them and they’re prized possessions <3. They’re so flattering, too! (I’ll post again when it;s 120 to give a compete review, but, please, don’t hesitate to buy two ro three of thesse magnificent jackets!
Date published: 2019-03-23
Rated 5 out of 5 by from Light Jacket I bought this for traveling. Layers nicely Wrinkle free
Date published: 2019-03-06
Rated 5 out of 5 by from LOVE this jacket! I received this jacket as a gift and absolutely love it! So comfortable! The fit is perfect. The thumbholes and slightly longer back make it even better :) Love my Coolibar!
Date published: 2019-02-26
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