Thousands of small glass balls bundle the incoming light and return it to the light source: This is how our reflective material works. The reflectors are attached all around the School backpack. They frame the backpack so that its outline is clearly recognizable in the dark.

Our bright 3-piece colored patches, that can be zipped on the backpack, provide even more visibility in traffic. To make sure the Kletties do not disappear underneath it, there are extra velcro surfaces for the Kletties on each piece of the set.