The top zipper on the main compartment opens wide to let you cram in big books, or stuff it full for an all-day hike.

• Body is tough packcloth. Bottom is abrasion-resistant Cordura®.
• Foam-padded shoulder straps and a low-profile webbing waistband.
• Side pockets with elasticized tops hold water bottles securely.
• Flat pocket on front holds your wallet, coins, or bus pass.
• Front flap zips down to expose organizer pouch with holsters for gadgets, pencils, and felt pens.
• Key clip.
• Daisy chains let you lash on extra gear or clip on a coffee mug.
• Reflective taping on front webbing.
• Designed for school purposes (though it won't implode of you take it on a hike). It's built to get your rulers, erasers, laptop and books to a qualifying or accredited institution – in short, a school.