O'Neill Women's Thermo-X Long Sleeve Insulating Rashguard

4.5

Rated 4.5 out of 5 stars

168

$71.95

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SKU: 5025 | Product Code: 8161304

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Layer up for the coldest waves in the O'Neill Women's Thermo-X Long Sleeve UPF 50+ Thermal Rashguard. Featuring Thermo-X Hyperdry fabric that provides maximum...

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4.5

Rated 4.5 out of 5 stars

Based on 168 reviews

Total 5 star reviews: 120 Total 4 star reviews: 27 Total 3 star reviews: 12 Total 2 star reviews: 4 Total 1 star reviews: 5

88%would recommend these products

Fit/SizingRated -0.4 on a scale of minus 2 to 2

Customers say

Customers say this thermal rashguard is a game-changer for cold water swimming. It provides excellent warmth and comfort, allowing users to extend their swim time in chilly conditions. The soft, fuzzy interior is praised for its coziness. While the snug fit is appreciated for its insulating properties, many advise sizing up as it runs small. Users love its versatility for various water activities, from lap swimming to snorkeling. The quick-drying fabric and ease of movement are highlighted positives. Some find it challenging to remove when wet, but overall, it's highly recommended for its effectiveness in maintaining body heat in cold water.

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168 reviews

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SS
Sandy S.
Verified Buyer
Reviewing
O'Neill Women's Thermo-X Long Sleeve Insulating Rashguard
I recommend this product
Primary Activity Uses Water Aerobics
Rated 5 out of 5 stars
12/18/25
Thermo shirt
It is very comfortable and keeps you warm and drys fast
Fit/SizingRated 0.0 on a scale of minus 2 to 2
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S
SwimOutlet
12/18/25
Awesome! So glad it keeps you cozy and dries quickly Sandy!
TL
Tracy L. B.
Verified Buyer
Reviewing
O'Neill Women's Thermo-X Long Sleeve Insulating Rashguard
I recommend this product
Primary Activity Uses Water Aerobics
Body Type Athletic
Rated 5 out of 5 stars
12/2/25
Warmth for water volleyball
Perfect weight and warmth for all day pool play in cooler weather
Fit/SizingRated 0.0 on a scale of minus 2 to 2
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MC
Marla C.
Verified Buyer
Reviewing
O'Neill Women's Thermo-X Long Sleeve Insulating Rashguard
I recommend this product
Primary Activity Uses Swimming
Body Type Curvy
Rated 5 out of 5 stars
11/24/25
Soft, comfortable
Very pleased with this purchase. Soft, warm, comfortable. Makes it easier to get into the water and endure that initial chill. Does not completely protect from the first chill, but does reduce the chill on first contact with the water. The water temperature no longer makes me hesitate to go for my daily morning swim. I needed this insulating rashguard to stay committed to my morning fitness swim at the gym.
Fit/SizingRated 0.0 on a scale of minus 2 to 2
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RP
Randi P.
Verified Buyer
Reviewing
O'Neill Women's Thermo-X Long Sleeve Insulating Rashguard
I recommend this product
Primary Activity Uses Swimming
Body Type Petite
Rated 5 out of 5 stars
11/17/25
Great Rashguard
I can't wait to try it out today, but I trust the brand and it was at the right price point.
Fit/SizingRated -2.0 on a scale of minus 2 to 2
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LJ
Leslie J.
Verified Buyer
Reviewing
O'Neill Women's Thermo-X Long Sleeve Insulating Rashguard
I recommend this product
Primary Activity Uses Water Aerobics
Body Type Petite
Rated 5 out of 5 stars
11/13/25
Keeps me warm
This is the second one I have purchased, and now five more people in my Water Aerobics class have purchased them as well, based on my recommendation. We all love them!
Fit/SizingRated 0.0 on a scale of minus 2 to 2
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