Stay hydrated This backpack is an all-terrain hero. The LUXURY carries enough gear for a full day of mountain biking and has a slim design that lets you focus on the ride, not your pack. The 3 liter reservoir holds enough water for rides of more than 3 hours, and the bag offers extra storage space for everything else you need: keys, helmet, lunch and cycling tools. The ventilated rear panels keep the air flowing over your back and the detachable waist belt keeps everything in place on bumpy rides. Thanks to the women's-specific design, the contoured shoulder straps have a comfortable fit over the chest without chafing, and the shorter pack length offers a better ergonomic fit.