Heartbreaker Membership Size:XL while the BiO-Matter®* frame material

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

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

half-marathon

Get ready for serious pace

High-rise waistband

Heartbreaker Membership Size:XL while the BiO-Matter®* frame materialGroundbreakers, 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