Description of Timbuk2 Hidden Backpack We all want to be more Pro-Planet, and we know bringing our own bags to the store is the right thing to do, but they're so easy to forget. Our hide away shopping bags are so compact they can go with you anywhere and so stylish you won't ever want to zip them back up. Made of durable and recyled PET rip stop, they won't tear. You'll never have to decide between paper or plastic again! Features: Rip stop fabric is lightweight, durable and won't tear Zip boot makes fold and pack a cinch 100% machine washable-warm or cold water, no shrinkage Fits easily into your messenger or carry on bag for travel Medium 10 x 13.5 x 5.5" 0.4lbs (0.18kg)