Promotional VINGA Baltimore RCS Backpack Minimalistic and clean backpack that suits all occasions. The backpack is made of PU-material and has adjustable straps for optimal comfort. The backpack is also equipped with a zipper pocket on one side and a hidden pocket on the back, so you can easily turn your back without worrying about your valuables. Works equally well as a work bag and as a school bag. RCS (Recycled Claim Standard) is a standard to verify the recycled content of a product throughout the whole supply chain. Total recycled content: 21% based on total item weight. Certified by Control Union, CU1162221.