Osprey Sojourn 80 Litre Wheeled Travel Pack 28Inch CHideaClimbQuickNuts and its low profile fits

and its low profile fits nicely under a helmet for climbers and ski tours

the crux of your project

It is versatile: can also be worn around the neck

High-efficiency roller bearings

and feature X-Lacing® that holds the lacing in place both horizontally and vertically

Osprey Sojourn 80 Litre Wheeled Travel Pack 28Inch CHideaClimbQuickNuts and its low profile fitsFor lengthier journeys, the Sojourn 80 redefines the boundaries of wheeled travel. For tight stairways and quick moving travel connections, sling this travel pack over your back with the ventilated AirScape backpanel and harness. Then stow them away for safekeeping when it's time to check your bag at the airport. Oversized 110 mm wheels and a lightweight HighRoad chassis keep you rolling in comfort, no matter how heavy the load is. StraightJacket