From the Manufacturer
Sigma 2 features Zero Gravity frame construction that is fully flexible for maximum protection of contents in transit. It is lighter and stronger than convention frame construction, helping to keep packed luggage below most airline-enforced weight restrictions. The vertical cases are equipped with a durable polyurethane In-Line Skate Wheel system. The high impact wheel housings are mounted at the outside corners of the case to ensure superior stability and s (more…)