The Men's Lightning has been discontinued. It was replaced by the MSR Lightning Trail.
Mountain Gear says:
Travel at 220,000 km/hr, or at least try, in MSR's Lightning snowshoes. Climb up hills and rolling terrain with these superlight climbers featuring a Total Traction frame for unprecedented 360-degree traction, easy to fit step-in bindings and a True Hinge steel crampon.
Historic Range: $114.98-$229.95