In stock

Baby Boy Beach One-Piece Swimsuit UPF 50+

Was $39.00
Now $34.99
Baby Boy Beach One-Piece Swimsuit UPF 50+ is rated 4.8 out of 5 by 133.
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  • UPF 50+
  • Front snap neckline for easy on and off
  • Snap-close bottom for on-the-go diaper access
  • Aqua Juno™ fabric: Quick-drying, soft and durable fabric that is chlorine and saltwater resistant
  • Chlorine and saltwater resistant with 4-way stretch
  • Easy care: machine wash warm, line dry
  • Imported

Recommended for baby's splashy pool or beach days in and around the water.

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

Protecting skin from the sun starts at day one! Comfy design, fun patterns and unbeatable sun protection is what our Baby One-Piece Swimsuit is all about. Front shoulder placket snaps for hassle-free on-off and snap-close bottom for easy diaper access.

More Information
Recommendation Content

All Coolibar fabrics are recommended as effective UV protectants only for covered areas. Coolibar is the first clothing company to receive The SCF Seal of Recommendation.

Fabric Details
Aqua Juno™ Fabric
Aqua Juno fabric is supple, smooth and soft with all the intelligent features of our ground-breaking Aqua Classic 4-way stretch fabric. This breathable, quick-dry UPF 50+ fabric is chlorine and saltwater resistant, making it just right for water play, casual swimming, fishing and boating.

With Coolibar, it's easy to find the UV clothing size that fits your child best. Just use the size charts here and order with confidence every time. To determine the correct size, match your child's measurements to the charts (weight is in pounds and all other measurements are in inches). If you have any questions regarding the fit of an item, talk to one of our Customer Service Representatives at 1-800-926-6509. They will be happy to help.


MEASUREMENTS6M6 - 12M12 - 18M18 - 24M
HEIGHT (inches) 25 - 27 27 - 30 30 - 32 32 - 34
WEIGHT (pounds) 15 - 18 18 - 23 23 - 27 27 - 30


HEIGHT (inches) 34 - 36 36 - 38
WEIGHT (pounds) 30 - 33 33 - 36


MEASUREMENTSXS 4S 5-6M 7-8L 10-12XL 14-16
HEIGHT 38-41 42-47 48-53 54-59 60-62
WEIGHT 35-38 39-48 49-68 69-95 96-115
CHEST 22 23-24 26-27 28-30 31-32
WAIST 22 22 1/2 - 23 23 1/2 - 24 1/2 25-26 27-29


0 - 6M
6M - 12M
12M - 24M
2T - 3T
S/M (4-8)
L/XL (10-12)
HEAD SIZE (inches) up to 17 1/2 18 - 18 1/2 18 1/2 - 19 1/2 19 1/2 - 20 20 - 21 21 - 22

Use a soft tape measure. 

Height: Stand in stocking feet, with feet together, back to the wall. Measure from crown 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 on 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 of the hem. Number of inches equals 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 One piece swimsuit Love it - perfect for little ones so you don't have to rub them down in lotion all day.
Date published: 2016-07-06
Rated 5 out of 5 by from Perfection!! I purchased this suit for my little boy about a month ago before our trip to the beach (my little one is red headed and extremely fair skinned!) It was amazing!! He did not burn at all, was completely comfortable playing in it, it dried very quickly and was super light weight and cool!! We will definitely be regular customers in the years to come!!
Date published: 2016-06-28
Rated 5 out of 5 by from Works great, looks great! I bought this for my almost 2 year old before our Beach trip. I didn't want to have to constantly worry about coating her with sunscreen. It worked great! Very cute as well!
Date published: 2016-06-26
Rated 5 out of 5 by from Great coverage for baby Since my baby is 5 months old and cannot wear sunscreen yet, I needed a swimsuit with full coverage that will protect her skin. This fits perfectly and is very light so she does not get hot. Exactly what I was looking for!
Date published: 2016-06-25
Rated 4 out of 5 by from Great quality! I absolutely love the quality of this suit! The only reason I didn't give 5 stars is due to the length of the legs- I think they are too large for the size 18-24 months.
Date published: 2016-06-21
Rated 5 out of 5 by from Great buy! I bought this for my son who enjoys pools and splash pads during the Texas summer. This suit helps protect him from the sun and keeps him comfortable in the heat.
Date published: 2016-06-16
Rated 5 out of 5 by from Adorable! This exceeded my expectations. The snaps are super easy and quick to snap and unsnap. I bought the 6-12 month size. My daughter normally wears about 6 month clothing. The suit fits great. Very light. Lots of compliments :)
Date published: 2016-06-16
Rated 4 out of 5 by from Excellent coverage! This suit provides excellent coverage for my daughter. The colors are bright, and she loves the fish design. I am disappointed that the snaps at the legs are plastic rather than the usual metal snaps, which are used on this suit at the neckline. Also, this suit seems to run big, but that gives us room to grow through the summer.
Date published: 2016-06-09
Rated 5 out of 5 by from Covers entire arms and legs The product is great. I first bought the 0-6M size for my then 4 month old. I bought the 12-18M size for my now 9 month old (whose weight was between the 6M and 6-12M sizes, and whose height was in the 6-12M range). I have to roll the sleeves and pantlegs for now. It is the only suit I could find that covers the full arms and legs. I only need to put sunscreen on the feet, hands, and face.
Date published: 2016-06-09
Rated 5 out of 5 by from Super cute suit! I love this suit! It's the second one that I've purchased. I bought one years ago for my son, and just purchased this one for my daughter. It looks so cute on her! I wish they weren't quite so expensive, but they do hold up well and it's the only product of its kind that I've been able to find that will cover my little one so completely. Skin cancer runs in my family, so coverage is definitely a priority for me. I also like covering her up rather than having to slather her with so much sunscreen. I wish these one-piece suits came in bigger sizes for my older kids.
Date published: 2016-06-02
Rated 5 out of 5 by from Cute and Great Sun Protection This swim suit is adorable. My 6 month old fits perfectly into the 6-12 month with room to grow through the summer. The snaps are easy to fasten and stay closed. Provides full coverage from the sun making it easy because baby won't sit still! Love this suit.
Date published: 2016-05-31
Rated 5 out of 5 by from Perfect for baby! I bought this one piece suit and splashy hat for my 10month old is so cute and the perfect thing to protect her tender skin from the hot summer sun....she is totally comfortable in it and no need to keep applying sun block..
Date published: 2016-05-29
Rated 5 out of 5 by from Pretty and Practical I ordered this a few backs and been using it every time we take my daughter to beach and pool. We had another one piece from Coolibar and they're just great ! Pretty and very comfortable. Just a heads up , I think they run a bit larger than the size as my daughter is 23months but it still looks like she can continue using it for a while.
Date published: 2016-03-26
Rated 5 out of 5 by from Good Quality i like the design, covers the whole arms and legs, protect my son from sun in Australia.
Date published: 2015-10-15
Rated 5 out of 5 by from Cute one piece I bought this for my grandson. I'm sure his parents will appreciate the snap-close bottom for an easy diaper change.
Date published: 2015-09-13
Rated 5 out of 5 by from Favorite summer purchase Bought this suit for my nine month old daughter. she was previously only wearing long sleeve rash guard tops with sunscreen on legs. Her legs appeared to be getting too much sun exposure and this full suit was perfect. On the beach it keeps sand out of diapers which is just as wonderful as the spf protection. I will continue to purchase these for many years! Excellent product.
Date published: 2015-08-11
Rated 4 out of 5 by from Adorable protection I wanted a bathing suit that covered the arms and legs of my three month old for our trip to Florida since she is too young for sunscreen. This suit did a great job and I got a ton of compliments on it. It's very easy to get on and off. She wore it at the pool and beach. I'm only deducting one star because it did fade after a couple of uses and I also wish the legs were a little longer. It's more of a Capri length on my baby so I had to use sunscreen on her ankle area. The sleeves are nice and long though. I'm happy with my purchase overall.
Date published: 2015-07-21
Rated 5 out of 5 by from Adorable I bought the swimsuit and matching hat for my granddaughter for our summer vacation at the Jersey Shore. It was perfect in every way.
Date published: 2015-07-18
Rated 5 out of 5 by from Baby safe and in style! Most important, my baby likes it and keeps her safe. She likes to wear it even if she is not at the beach, fees very comfy.
Date published: 2015-07-17
Rated 5 out of 5 by from Best I got it and my baby loves it !! hes is comfortable and cool :)
Date published: 2015-07-09
Rated 5 out of 5 by from Great suit! A great suit for our 6 month old. He's a big kid, so I ordered up a size. Worked great and fit over the swimmer diaper easily.
Date published: 2015-07-02
Rated 5 out of 5 by from The best for babies I really haven't been able to find any other brand that covers up babies properly. These suits are the only things I will buy for my little ones. They fit very well!
Date published: 2015-06-18
Rated 5 out of 5 by from Worry-free outdoor play!!! We bought this for our precious 1 year old to avoid too much sun exposure - it has been fairly easy to get her in and out of, but more importantly, we have been able to enjoy the pool/beach for hours on end and not worry about her skin! It's great!!!
Date published: 2015-06-15
Rated 5 out of 5 by from High Quality Got two of these for our twin boys and couldn't be more excited! Very high quality and they loved them. Excited to take them on our next vacation. Only issue was one snagged on the cement, but that would happen to any 'rash guard' material.
Date published: 2015-06-10
Rated 5 out of 5 by from So comfy - great fit! I bought this one piece swimsuit for my 10 month old grandson to wear at the lake that they are so lucky to live at. It fit him perfectly and he'll be able to wear it all summer and stay protected from the suns rays!
Date published: 2015-06-09
Rated 5 out of 5 by from Great suit - runs a bit small I bought this swimsuit in size 12-18 months hoping that my son could wear it throughout the summer and into the early fall. He is currently seven months old and 19lbs, and the suit fits him very well already. He does have room to grow in it, but there is no way he could actually wear this at 18 months. It is an amazing swimsuit though! Very comfortable, light material, and great sun protection. It makes it so that I only have to sunscreen his hands, feet, neck, and face. Love it and will buy another when he grows out of this one.
Date published: 2015-06-05
Rated 5 out of 5 by from All around excellent quality. Did what we needed Bought it for our son to wear in Cuba while on vacation. Excellent sun protection and dries very quickly
Date published: 2015-05-31
Rated 5 out of 5 by from cool in the sun I am very pleased with the hat. It stays on and is nice and lite. my 14 month old can see over the brim but is is more than enough brim for her. Can not say enough about it. The suit is cute and I think cool for my daughter. now I only sun block her hands and face and back of neck. I wish i had ordered more.
Date published: 2015-05-26
Rated 5 out of 5 by from Love this swimsuit! It's great! I've become increasingly worried about sun exposure and skin cancer the older I get. After my second child, I looked up Coolibar based off my dermatologist's recommendation of this brand. I immediately fell in love with the full body swimsuit for my 12mo daughter. It's perfect. She's about 10-25% in length (appx 27.75 inches) and weight (18.5 lbs). Measurement chart states she should be in 6-12mo, but I did the 12-18 mo suit and it's perfect. I roll up the arms and legs and it's fine. It's a little big, but it still looks great. I like the pink polka dot with the dolphin print. I didn't care for the other prints available and wish there was a greater variety offered. People question if it's too hot, yet it hasn't been an issue for us. I'm extremely happy with this purchase!
Date published: 2015-05-22
Rated 5 out of 5 by from Highly recommended I bought the 6-12 for my 8month old daughter to go to south Florida. She is very pale. I LOVE IT. this is the best swimsuit I have ever bought. It's thin so it's not hot but it keeps her covered so she doesn't burn. I highly recommend this.
Date published: 2015-05-20
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