Head Challenger 130 ski bootsHead Challenger 130 men's ski boots Head has done it again. After huge success over recent seasons with Vector models, here is a brand new and even better model from the boot lab at Head. And, this new Challenger is the hallmark boot in this new collection, with all the best, and often unique features, that have made so many skiers soooo happy. At Proskiguy, we love, love, love ski boots. We like to study them. We like to test them. We understand