Granite Gear map cases protect your maps from rain and spray. The Thunderhead is perfectly suited for attachment on Granite Gear thwart bags, portage packs, and backpacks. Shock-corded hooks running through side sleeves allow secure attachment. Built with heavy-duty vinyl and 210 denier nylon, it's sure to last through many canoe trips.
• Protect your map from rain and spray
• Shock-corded hooks along the sides allow secure attachment
• Attaches to Granite Gear portage packs, thwart bags, and back packs
• Includes plastic D-ring attachments
• Made with heavy-duty vinyl and 210 denier nylon