Collection: R1

  • Dual-zone ZeroSag midsole inserts with little degradation during long runs
  • LightCELL midsole base featuring excellent lightness and bounce
  • GOFLOW midsole geometry to guide your stride
  • TUNEDFIT Dual Lacing System for separate lace adjustment
  • Ultralight at 8.5 oz / 240 g (US M9)
  • Breathable and eco-friendly

R1

Boost your ultrarunning performance.

Key Features

  • Dual-zone ZeroSag midsole inserts with little degradation during long runs
  • LightCELL midsole base featuring excellent lightness and bounce
  • GOFLOW midsole geometry to guide your stride
  • TUNEDFIT Dual Lacing System for separate lace adjustment
  • Ultralight at 8.5 oz / 240 g (US M9)
  • Breathable and eco-friendly

S1

Get ready for your next ultra.

Key Features

  • ZeroSag midsole insert with little degradation during long runs
  • LightCELL midsole base featuring excellent lightness and bounce
  • GOFLOW midsole geometry to guide your stride
  • Outstanding stability for your long-distance training
  • Breathable and eco-friendly