Designed to be used as its name suggests twentyfourseven the versatile use of this technical pack means it can be used up in the hills or in a more urban environment thanks to its multiple pockets and great back system the hydration compatible design will work with most hydration systems for a no faff way to sip your water so you can keep on feeling refreshed throughout the day features ventilated a padded flow back system with vented foam provides superb comfort and breathability performa