O’Neill Thermo-X Long Sleeve is a high-performance thermal top designed for girls and boys, perfect as underlayer for wetsuit. Crafted from 220 g Nylon/Spandex with HyperDry technology, it provides exceptional insulation while maintaining a low bulk and quick-dry properties. The 4-way stretch fabric ensures maximum flexibility, allowing for unrestricted movement during water sports activities.

This top features strategic seam placement and flatlock stitched breathable seams, enhancing comfort and reducing chafing. The super low neck design ensures no interference with wetsuit necks, making it ideal for layering. Additionally, it is water-repellent and rash-resistant, keeping your skin dry and safe throughout your adventures. The inclusion of a boardshort connector adds convenience, ensuring your top stays securely in place.

With the O’Neill Thermo-X Long Sleeve, you can stay warm, comfortable and ready for any water sport challenge!