How Running Went High Tech

For the past four years, 31-year-old Sonam Shah has been part of an after-work running club in London, frequented by a mixture of city workers and creative types.

Shah was never one of the group’s “cool kids,” not seeing the appeal of buying $300 supershoes from Nike or Adidas or wearing a technical hydration vest for a casual 5k run around a park. But around a year ago, her cultural cachet took off when someone asked her what tech she…