Most good ones start around 21 liters compressed, then expand to about 28 liters with perimeter zippers
Lightly flamed caramel cane, 3x3 node spacing, mirror matched tips, translucent wraps with fine black tipping, black wraps at ferrules, sterling silver rope braid hook keeper, 6 Wells grip, U/L Bellinger nickel silver screw lock seat w/stabilized maple burl spacer, chrome guides with chocolate/coffee color agate stripper, bright hardware
Allen brings it home to the USA
The TORRO 17.5L Commuter Laptop Backpack is a lightweight, water-resistant backpack designed for professionals, students and frequent travellers who need organised laptop storage, travel-friendly features and everyday comfort
The only negative point I could find with the Cura is the hose connection at the caliper