Price: $
Industry Video
Rollover product image for a larger view.

This speedy racing flat is sure to be your favorite race day shoe. It's super light and somehow manages to provide cushion and protection. The K-Ruuz is incredibly breathable and offers a sweet fit and feel. You'll get a touch of support, making this shoe versatile. Great for distances from 5k to the half marathon.

Model Number:

Weight: 6.3 oz (size 8)

Stack Height: Heel (21mm), Forefoot (12mm)

How It Fits (based on width B) Width B=Medium

  • Sizing: Standard running shoe length
  • Heel: Medium
  • Midfoot: Medium volume
  • Forefoot: Medium width
  • Toe-Box height: Medium
  • Arch Structure: Medium height

Product Lifecycle

  • Release date: January 2010
  • Model discontinued: Unknown


Introducing the K-Swiss K-Ruuz, a minimum featured shoe designed for mild overpronation. This lightweight racing flat is intended for faster paced workouts or racing and has a ? overall shape.


  • K-EVA is a blend of EVA engineered to enhance cushioning and durability of the midsole.


  • K-EVA is a blend of EVA engineered to enhance cushioning and durability of the midsole.
  • Dual Density Post is located at the medial midfoot and is a higher density foam intended to reduce the rate of pronation.
  • TPU Insert is located at the bottom of the midfoot and is a thermoplastic unit designed for a smooth heel to toe transition.


  • Open Mesh covers the entire upper and allows moisture and heat to escape from within the shoe.
  • Flow Cool is located at the heel and toe and are perforations in the synthetic material designed for moisture management.
  • Five Stripe Overlays are used at the medial and lateral sides of the upper and are designed to keep the upper snug to the foot.
  • Drainage holes are located along the center of the midsole and are intended for water drainage.
  • Traditional Sockliner
  • Traditional Last


  • Aosta II is utilized at the heel and is a high density rubber designed for outsole longevity.
  • Blown Rubber is positioned at the forefoot and is a lightweight rubber intended for flexibility.

Shoefitr shows you how a shoe will fit.

Shoefitr collects the internal measurements of shoes using 3D scanners.
We compare measurements of your current shoe to the one you want to buy...
...and recommend the best-fitting size.
show technology
Free Shipping - Free Returns