mountainFLOW Bamboo + Cotton Bike Towels - 3 PackmountainFLOW's cleaning towels will take your shine to a whole new level. These all natural towels are extremely durable, absorbent, and unlike other microfiber towels made from petroleum, these are made from cotton and bamboo so you don't have to worry about microplastics making their way into the environment. Here's the breakdown for each towel: DRIVETRAIN: Extra durable cotton cloth to clean chain and drivetrain components FRAME: Soft + strong