Firewire The Gem 9'1" SurfboardDimensions: 9'1" x 22 1 4 x 3 x 67. 1L The Gem is a collaboration between Dan Mann and 3x World Longboard Champion, Taylor Jensen. Earlier this year Taylor asked Dan to consider a one board in the trunk option for longboarders who want both trim and turns he was essentially asking Dan for a design that would land somewhere between his TJ Pro and his TJ Everyday. Dans response was an intriguing intersection of shortboard style concaves with a longboard