Jester Bum Bag. The Jester Bum Bag may be small and compact, but it packs plenty of space for all the essentials you need. • Fabric - Solid & Printed Styles | 600D Recycled Polyester with Non-PFC Durable Water-Repellent (Non-PFC DWR) Finish • Fabric - Heather & Mélange Styles | 300D Heathered Polyester with Non-PFC Durable Water-Repellent (Non-PFC DWR) Finish • Sizes | OS• Avg Weight | 140 g • Volume | 2,2 Litres • Dimensions | 7,9 cm x 14,6 cm x 10,2 cm • The crowd-favourite Jester daypack now comes in a lumbar-pack design that still has its signature front bungee system and plenty of internal organisation • Bungee system can stretch and hold bulkier items • Adjustable webbing strap allows for both a waist and cross-body carry • Large central compartment holds your smaller valuables • External, secure-zip pocket for organisation