This is a 16" tire from Schwalbe for Bromptons that offers the most puncture protection. It features Schwalbe's Smartguard technology, a 5 mm thick, recycled latex anti-puncture layer. The Marathon Plus also has an "anti-aging" sidewall, developed by Schwalbe to resist the common cracking that can occur with tire sidewalls over time. This tire is black with a reflective sidewall and this size will fit all Bromptons.