No matter where we went in the Sierra Nevada mountains, the Platypus Duthie A.M. 10 was our favorite all around. Fully featured for day adventures, we took this pack on mountain bike rides, hikes, trail runs, and even some springtime backcountry ski laps. With a 3-liter water carrying capacity, the Duthie is in for the long haul, whatever your outdoor activity of choice. The pack sports durable materials, a great assortment of pockets for your gear storage needs with an emphasis on mountain bike users, excellent ventilation, solid support, and an easy to fill water bladder. Our lead tester has been getting outside with this pack for a year now, far beyond the original test period, and his stoke on it hasn't ceased.
If the $140 price tag is too steep on this product, avert your gaze toward the also excellent yet more modestly priced Osprey Syncro 10. These packs stack up well against each other, with the Syncro providing more weight savings. We prefer the awesome organization and the 3-liter bladder (as opposed to 2.5 liters in the Osprey model) of the Duthie, but also recommend investigating if the Syncro fits your needs and saves you money.