Ortlieb Dry-bag Light 7L

"The Dry-bag Light 7L from Ortlieb is the ideal companion for anyone who values lightness and protection from the wet. This pack sack is made of a super-light nylon fabric and offers a volume of 7 liters, perfect for use as an inner bag in non-waterproof luggage such as sewn backpacks or panniers. Thanks to its robust, round base and practical bottom loop, it is particularly durable and easy to handle"
"With a protection class of IP 64, the Dry-bag Light 7L offers reliable protection against splashing water from all directions, so that your equipment stays safe even in adverse weather conditions. The roll-top closure ensures that the contents of the pack always stay dry. Please note that the specified height is measured when the closure is rolled up five times. For the unclosed height, you can add about 15 cm."
"The Dry-bag Light 7L is unisex and is suitable for all outdoor-fans who want to stow their equipment compactly and safely. Whether hiking, cycling or other adventures in natureu2013 with this lightweight yet robust pack sack you are well equippedu2013."