SUP Examiner: Beltpack PFDs and the MTI Adventurewear Fluid 2.0 0 10 Dec 2017 01:04 Playak MTI Adventurewear Fluid 2.0 PFD The MTI Adventurewear Fluid 2.0 is a modern beltpack style PFD packed full of features to accommodate a wide range of paddlers.