Arc'Teryx Altra 75 LT Backpack Serrated Lens Material Optical-grade glass lens

Lens Material Optical-grade glass lens with antireflective coating on both sidesÂ

ID window: 5" x 4

Oversized lanyard hole can accommodate keychain carry

Tailcap click switch—press for momentary-on

6V 18650 Rechargeable Battery Light Form Smooth and well-balanced beam profile Lens / Reflector Type TIR Optic Lens Mode Operation Dual Switches Form/Size Factor Small Size: Â

Arc'Teryx Altra 75 LT Backpack Serrated Lens Material Optical-grade glass lensThe 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