10% of your purchase from items in our Breast Cancer Awareness collection marked with a pink ribbon will go to the Breast Cancer Alliance, a national foundation that has awarded more than $37 million to breast cancer research, fellowships, and screenings for underserved communities. Minimalism to the max is a good description of Ortlieb's ultra-lightweight seat pack for road bikes and mountain bikes. The Micro-Bag was specially designed for those demanding tours when every gram counts. NOTE: not suitable for carbon saddles.