Materials decide lifespan
Canvas (10–18 oz) and full-grain leather outlast synthetics by years under daily use; the trade-off is weight and care. Polyester packs are lighter and cheaper but pill and tear faster.
Check the material weight, not just the name: 'canvas' ranges from flimsy 8 oz to heavy 18 oz — the heavier grades are the ones that last.
Construction details that matter
Look at: stitching density (double or box-X at stress points), hardware (solid brass or coated steel vs plated pot metal), lining (cotton duck vs unlined), and zipper quality (YKK or equivalent vs unbranded).
A bag with good materials and bad stitching fails at the seams — inspect stress points before price.
Capacity, honestly
Litres are the useful number but hard to picture: a 20 L daypack carries a laptop, a bottle and a jacket; a 40 L pack is an overnight bag. The site provides comparisons rather than raw numbers.
For backpacks, also check laptop compartment fit — a 15-inch laptop needs roughly a 20–25 L bag with a padded sleeve.
Questions
Is this a bag store?
No — it is a reference publication. No products are sold here.
What bag material lasts longest?
Heavy canvas (16+ oz) and full-grain leather, with the caveat that leather needs conditioning.
How do I know if a bag is well-made?
Check stitching at handles and seams, hardware weight, and zipper brand — these reveal construction quality faster than marketing copy.
What capacity do I need for daily carry?
15–20 L for a laptop and daily essentials; 20–30 L if you carry a change of clothes or camera gear.