Heartbreaker Membership Size:XL 4-way stretch woven fabric is

4-way stretch woven fabric is designed to move in all directions to help you feel comfortable during your run

Heat-regulating tech and lightweight insulation offer warmth without adding bulk

We removed two spikes seen on the original in favor of a four-spike design

while the BiO-Matter®* frame material gives the frame all-day durability

half-marathon

Heartbreaker Membership Size:XL 4-way stretch woven fabric isGroundbreakers, pace makers, shot takers, Heartbreakers. Heartbreakers celebrate diversity of pace & person. We believe in the connective power of running to break down socioeconomic, ethnic, and religious barriers. We are beginners, Olympic trialists, international competitors, first time 5K runners, and best time everything runners. We are people who run, committed to getting better & committed to the success of each other. Membership includes your