We are big fans of Osprey gear at Unsponsored HQ. So when a new bag was required for mountain bike duties the Osprey website was consulted.

Osprey Zealot 15 - First Look

15 litres or there about seems to be the right kind of size for the bulk of riding that we do. Plenty of room for the essentials but not too much room that you end up filling because you can. The Osprey Zealot appeared to fit the bill nicely.

Osprey Zealot 15 - First Look


BioStretch™ hipbelt and harness
AirScape™ backpanel with foam ridges for ventilation
Zippered scratch-free sunglasses and electronics pocket
LidLock™ bike helmet attachment
Twin zippered hip belt pockets
Compatible with Hydraulics™ Reservoir
Stretch pocket on harness
Backpanel entry to main compartment
Front zippered pocket
Internal hydration sleeve
Internal organiser for bike specific tools and spares
Large front compression pocket
LED bike light attachment point
Main compartment with elasticated load control system
Padded front compression pocket for armour and full face helmet carry
Sternum strap buckle with magnet
Weight : 0.85 kg
Maximum dimensions : (cm) 48 (l) x 22 (w) x 24 (d)

Unlike many of the Osprey rucksacks the Zealot does not come supplied with a hydration bladder. However the Zealot is considerably cheaper as a result. I am currently using mine with a 2l and 3l Osprey bladder (not used at the same time!).

we’ve been using the Zealot pretty much weekly on rides of around 20 miles plus. A full report will be following on over the next couple of months.