Water-jet precision cut with closed cell foam to resist water and dust infiltration Our custom foam is housed in a custom designed and manufactured GPC bag High quality fabric made of 800 Denier YKK Zipper with Rain Flap Cover Adjustable Shoulder Strap for Easy Carry Rubber Handle for Single Hand Carry 2' Convoluted Lid with Hard Backer for Top Protection if Stacked Remember! - If it doesn't say GPC in the foam, it isn't guaranteed!