The O'Neill Blueprint Shirts block intense UV rays in the water and also on land. It can therefore be worn by water sports enthusiasts and is also versatile out of the water. O'Neill is committed to offering a full line of environmentally conscious products with the Blueprint line. Blocks UV rays with a sun protection factor of U.P.F 50+. Protects against annoying skin rash while surfing, called surf rash. Comfortable to wear thanks to the soft 4-way stretch fabric. BLUESIGN - Approved fabric. O'Neill's Blueprint Series continues a legacy of innovation with premium quality features and high-tech construction using the most sustainable materials available today. O'Neill is firmly committed to providing products with a high level of environmental responsibility. O'Neill Blue products are designed with longevity, circular economy and a better future in mind. For this reason, they set a requirement for themselves that at least 50% of the fabrics in a collection must use more sustainable materials in order for it to carry the O'Neill Blue label. They are proud to say that over 80% of the O'Neill spring and summer collection are O'Neill Blue products - and it goes further. They are well on their way to offering only the O'Neill Blue range by 2025.