I was given this large bag as a gift, but it is simply too big for me.

It has never been used and costs up to around CHF 400.– new.

Product name: Base Camp Rolling Thunder 36"
160-litre rolling suitcase with a hard-shell case for long-distance travel

Features
Features an improved hard-shell case designed to travel around the world again and again
Recycled and extremely durable Base Camp material
Robust, specially shaped wheels for comfortable rolling
Padded side and top handles allow various carrying positions
Webbing compression straps for securing items or compressing the bag when it is not full
Clamshell design and long zip make it easier to access the inside
External webbing straps provide additional attachment points
Ergonomic U-shaped zippers make opening and closing easier
Two exterior compartments with secure zips for quick access
Measures 36 inches (91.4 cm) from the wheels to the handle when it is collapsed
Lockable zip
Reflective details on the front of the bag
Internal compression panel for cinching down clothing and a mesh pocket with a secure zip
Two internal mesh pockets with zips
Large internal mesh pocket with a secure zip
The high-pile fleece strap allows you to carry your backpack or duffel securely on the front of your luggage