Arc'Teryx Altra 75 LT Backpack Serrated ID window: 5" x 4

ID window: 5" x 4

4 channels 2" webbing loops

Tailcap click switch—press for momentary-on

46oz) excluding batteries

Arc'Teryx Altra 75 LT Backpack Serrated ID window: 5" x 4The larger volume Altra packs (Altra 62 through 85) have a Load Transfer Disc that pivots to increase agility and stability on rough terrain and combine the C2 (Composite Construction) suspension with Gridlock shoulder straps that adjust for custom fit. The smaller volume Altra packs, (Altra 33 through 50) keep weight to a minimum by using the efficient C2 (Composite Construction) system. Trekking Near or Far Composite Construction (C2) eliminates