The fabric offers the best protection from the sun: long sleeves, trousers and hats with wide edges. Attention, simply wearing a t-shirt is not adequate protection: the thickness of the fabric, the density of the knit and even the colour may affect the amount of filtered UV rays. the label UPF 40+/ 50+ guarantees compliance with European standards. The indication UPF 40+ means that 97.5% of rays are blocked, 50+ that over 98% of rays are blocked.