According to DIN EN 13758-1, SPF 40 means that less than 2.5 percent (1/40) of harmful UV rays can penetrate the fabric of your VAUDE gear or clothing. Since VAUDE products do not contain any chemical titanium dioxide, UV protection is achieved solely through the choice of fibers, weave and thickness of the material.

• very good UV protection allows less than 2.5 percent of harmful UV rays to pass through
• without the use of the chemical titanium dioxide
• sun protection is achieved solely by the fabric’s properties