Riffe Drifter Utility Pack Backpack for Freediving and Spearfishing Speargun Stock Keeper with stowable straps - holds up to (2) spearguns Exterior hypalon lined fin secure system Convertible floor system - may be removed to increase main compartment capacity Capacity 2173.5 cu in / 35.6 L Dimensions 21 (53.4 cm) x 11.5 (29.2cm) x 9 (22.9cm)