The karrimor u bahn 20 daysack is a great daysack that offers an excellent level of comfort and a neat amount of storage space making it perfect for taking with you on a beautiful days walk the comfortable u bahn daysack offers lots of useful storage including a generous sized main compartment with an organiser pocket a zipped front pocket two mesh bottle pockets on the side and walking pole loops making it a great and versatile little backpack to take out on a day adventure