DAKINE's Apex Hydration Pack delivers top-of-the-line features, and enough storage and hydration capacity to keep you out on the trail for hours on end.

• Air Channel Ventilation on back panel helps avoid overheating on long climbs
  
• Helmet carrier fits both full-face or XC designs
  
• Armor carry straps let you stow your pads on the way up and get nasty on the way down
  
• Internal organizer pockets keep your tools, tubes, and other goodies secure
  
• Built-in rescue whistle helps notify others in case of emergency