Men's Xero HFS II - Lightweight Road Runner Bottoms A low 4 mm drop

A low 4 mm drop encourages natural foot position while bringing a brand-new running experience to the Altra line

The integrated massage effect promotes your sense of comfort

higher cut sides and two side pockets

Composite Plate

so you can stay focused on reaching your workout goals

Men's Xero HFS II - Lightweight Road Runner Bottoms A low 4 mm dropAn evolution of our best selling road running shoe, the HFS II is even more comfortable, and more stylish. While we call it a road runner, we know youll do much more in it and cant wait to see the pics of where it takes you and what you do. Like the original HFS, the HFS II is super lightweight (8. 3 oz, M9) so youll feel like youre flying down the road. And with a new tire tread inspired outsole, youll feel secure even if you go off road.