Perfect for tools and wind vests. As a frame bag, this triangular bike accessory with Velcro attachment fits perfectly between the top tube and seat tube. Vaude products with Eco Finish are environmentally friendly and water-repellent without the use of fluorocarbons (PFC). PFCs are a group of chemical compounds used to impregnate the outer fabric of many outdoor products. They have come under criticism for being non-biodegradable, accumulating in the body, and being suspected of being harmful to health. Vaude has made a clear commitment to completely eliminate PFCs. Vaude Green Shape Label: With the Green Shape Label, Vaude offers functional, environmentally friendly products made from sustainable materials. Fair working conditions are considered throughout the entire supply chain during production.