It's hard to have both,but I really like Case Logic's case.
If you get a steel computer case then yes, it will be very sturdy and durable.
The most durable and lightweight materials used in manufacturing bicycle frames are carbon fiber and titanium.
I recommend the Samsonite Winfield 3 DLX Hardside Luggage. It is durable, lightweight, and has wheels for easy travel.
It is non-toxic, durable and lightweight.
Heys USA is know to make lightweight, durable luggage.
titanium for sure
The Singer Portable Sewing Machine 2250 (Sold at Target for $89.99) has good customer reviews and is known to be lightweight and portable, as well as durable. The Singer brand is one of the most popular sewing machine brands, and has proven to be durable over time.
The rubber (silicon) cases are more durable than the leather because it is very good at absorbing shock .
Titanium is a durable lightweight metal derived from minerals such as ilmenite or rutile. It is known for its high strength-to-weight ratio, corrosion resistance, and biocompatibility, making it a popular choice in aerospace, medical, and sports equipment industries.
One resource you can try using is http://www.uniquevendingcarts.com/. Their products are durable and lightweight.
Steel is a good shelving metal. It is strong, relatively lightweight, and durable.
Some of the best options for a lightweight and durable road bike rear rack include the Topeak Explorer Rack, the Axiom Streamliner Road DLX, and the Tubus Fly Rear Rack. These racks are designed to be strong and sturdy while also being lightweight to minimize added weight to your bike.