O'Neill Men's Thermo-X Long Sleeve Insulating Rashguard
O'Neill Men's Thermo-X Long Sleeve Insulating Rashguard
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4.5(26)Rated 4.5 out of 5 stars

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

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    Product Details

    SKU: 5022 | Product Code: 8161301
    |
    Block out the cold in the O'Neill Men's Thermo-X Long Sleeve Insulating Rashguard. Featuring a layered fabric construction that provides insulation with low bulk...
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    Reviews & Questions

    4.5
    Rated 4.5 out of 5 stars
    Based on 26 reviews
    88%would recommend these products
    Fit/SizingRated 0.1 on a scale of minus 2 to 2
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    26 reviews
    • SB
      Stuart B.
      Verified Buyer
      Reviewing
      O'Neill Men's Thermo-X Long Sleeve Insulating Rashguard
      I recommend this product
      Product Standouts Fit
      Rated 5 out of 5 stars
      9/3/26
      Great for cold water

      I’m using this in my Vermont pond that I swim in in early September. This shirt has helped me stay warm.

      Fit/SizingRated 0.0 on a scale of minus 2 to 2
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      S Profile picture for SwimOutlet
      SwimOutlet
      9/3/26

      Thanks Stuart! Glad the Thermo-X is keeping you warm during your early September swims. Appreciate the feedback!

    • KC
      Kimberly C.
      Verified Buyer
      Reviewing
      O'Neill Men's Thermo-X Long Sleeve Insulating Rashguard
      I recommend this product
      Body Type Tall
      Product Standouts Quality, Fit
      Rated 5 out of 5 stars
      8/3/26
      Provides warmth!!

      I take and often substitute an adult pool workout, as well as teach swimming lessons which has me in the pool for 3-4 hours at a time. Since I get a major skin irritation from the neoprene wetsuit, this provides a wonderful alternative. Please, please do not stop carrying this thermo swim shirt!!

      Fit/SizingRated 0.0 on a scale of minus 2 to 2
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      S Profile picture for SwimOutlet
      SwimOutlet
      8/3/26

      Thanks so much for the great feedback, Kimberly! We're thrilled the Thermo-X works so well for your pool workouts and lessons. We appreciate your support!

    • RS
      Richard S.
      Verified Buyer
      Reviewing
      O'Neill Men's Thermo-X Long Sleeve Insulating Rashguard
      I recommend this product
      Body Type Slim
      Product Standouts Quality, Performance/Durability, Support, Fit, Design
      Rated 5 out of 5 stars
      9/2/25
      Great!

      Excellent product

      Fit/SizingRated 0.0 on a scale of minus 2 to 2
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    • ES
      Eric S.
      Verified Buyer
      Reviewing
      O'Neill Men's Thermo-X Long Sleeve Insulating Rashguard Black
      I recommend this product
      Body Type Athletic
      Product Standouts Fit, Design
      Rated 5 out of 5 stars
      9/26/24
      Warmth

      Provides excellent insulation and freedom of movement

      Fit/SizingRated 0.0 on a scale of minus 2 to 2
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    • DG
      david g.
      Verified Buyer
      Reviewing
      O'Neill Men's Thermo-X Long Sleeve Insulating Rashguard Black
      I recommend this product
      Body Type Muscular
      Product Standouts Quality, Performance/Durability, Fit, Support, Design
      Rated 5 out of 5 stars
      8/9/24
      thermal rash guard

      excellent

      Fit/SizingRated 0.0 on a scale of minus 2 to 2
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