The reason we call them iPac"s is because you design the interior to fit your needs; iPac"s feature modular walls and fit blocks that can be endlessly reconfigured to accommodate your ideal mix of instruments and accessories in one portable and protective unit. * Product Material: Ballistic Nylon * Product Weight: 12 lbs. * Modular walls and adjustable fit blocks allow you to configure * Hook n"loop Quick-lock closure * Lightweight shock absorbing frame * Oversized exterior pocket * Includes three dual mouthpiece pouches * Built in organizer to hold pens, keys and small accessories * 1680 gauge nylon exterior, water and abrasion resistant * Features in-line skate wheels and telescoping handle * Includes padded shoulder strap and ID tag