Vaude Astra 55 + 10VaudeAstra 55 + 10Price $180.00SpecsFrame Type internal Load Type hybrid Min Expandable Capacity (Cubic Inches) 3350Max Expandable Capacity (Cubic Inches) 3960 Sizes Available 2Features Water bottle holsters, Divider between main and sleeping bag compartments, Adjustable torso length, Hydration sleeve (no bladder included) Weight 4 lbs, 15 ozMoreExisting model