Klim Nac Pak--

• 4-Season Functionality
• Bladder Pocket with Mouth Piece
• Insulator on Shoulder Straps
• Minimal Profile Maximum Volume Design
• Adjustable Shoulder Straps
• Removable Tool Pouch
• Lined Visor Pocket
• Quick Access Storage
• Circulation Channel Back Construction
• Included 2-Liter Bladder with Neoprene Hose Sleeve