Unisex cycling specific lumbar-pack from Osprey1.5L HydraulicsTM Lumbar Reservoir includedAirScapeTM backpanel with foam ridges for comfort180 degree on/off bite valveFront zipped pocketZipped scratch-free sunglasses/electronics pocket2x zipped hip belt pocketsInternal hydration sleeveInternal organisation pocketInternal mesh side pocketInternal key attachment clipLight attachment pointSide compression strapsReflective graphicsMaximum dimensions: L19 x W32 x D11cmWeight: 0.42kg