Mountain Hardwear Shaka 70 Backpack Nylon LEFTnotruc(Deluxe comfort fit, lightweight material set and construction plus trouble-free gear access in a weekend plus volume pack,500) Customizable suspension with 3" / 8.5 cm torso adjustment (hook and loop) plus swappable shoulder straps and FitLock hip belt Superbly functional HardWave+ framesheet is rigid horizontally to prevent round out, but is flexible in strategic vertical sections Great load transfer through an aluminum perimeter stay that locks into hip belt while allowing slight pivoting Upper horizontal stay creates a stable structure for heavy loads