Practice : Adventure Commuting Road / Triathlon Trekking Weight : 57g / 67g (without the rain cover) Material : Smartphone case overmolded in thermoplastic polyurethane. Mounting : 4 O-rings (2 x 33mm or 2 x 36mm / 2 x 1,3" Or 2 x 1,4") Accessories : 1 case, 1 mounting system, 1 rain cover, 4 O-rings Compatibility : Galaxy S8/S9