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Our LEGO® UPF 40+ sunwear styles are CE marked. That is the highest level of CE marking standard within sun-protective swimwear, and it complies with the EU harmonised standard EN 13758-1:2001+A1:2006 & EN 13758-2:2003+A1:2006. That guarantee us that our suppliers use UPF 40+ protective materials when they manufacture our sun-protective swimwear.
You can read the documentation for the individual products below.