A manufacturer is liable in strict liability for injuries foreseeably caused by a feature of the product design that could have been reduced or avoided by the adoption of a reasonable alternative design.  Here, plaintiff fell from a scissor lift when he failed to close the chain avross the opening to enter the lift’s platform.  The manufacturer offered an alternative design scissor lift with an automatic closing gate at that location.  So an alternative safer design was clearly possible.  The jury could reasonably conclude that the absence of a self-closing gate was a substantial factor in causing the injury even if it was also caused by the plaintiff’s failure to affix the chain closing.