The wide design in the eurohike water bladder 15w will keep the water evenly distributed across your back for an easy to carry and easy to stay hydrated productstaying hydrated while you take on the great outdoors whether youre off on a casual walk or an intense hike tuck the eurohike water bladder 15w into your backpack for on the go hydrationfeaturesactivityrunning walking hiking cycling fitnesscolour swatchbluegenderunisexhydration compatibleyeslaptop compatiblenstylehydrati