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Fast, flashy, and low profile, the K-Swiss K-Ruuz 1.5 is a speedy racing flat that's sure to turn heads wherever you go. Weighing in at a mere 6.0 ounces, this shoe's minimal construction gives you just enough coverage, without any burdensome extras. A perforated midsole drains moisture, and water-resistant mesh stays dry and light, to put you ahead of the competition.

Model Number:

Weight: 6.0 oz (size 9)

Stack Height: Heel (21mm), Forefoot (11mm)

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

  • Sizing: Fits large; purchase 1/2 size smaller than standard running shoe size
  • Heel: Medium
  • Midfoot: Medium volume
  • Forefoot: Medium width
  • Toe-Box height: Low
  • Arch Structure: Low height

Product Lifecycle

  • Release date: January 2012
  • Model discontinued: Unknown


The K-Swiss K-Ruuz 1.5 is a minimum feature, minimum support shoe designed for speedwork and racing. It is built with a semi-curved 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.
  • Seamless Upper allows for sockless comfort.
  • Ion-mask repellant is applied to the entire upper, for a light and breathable water-resistant shoe.
  • Flow Cool is located at the heel and toe and are perforations in the synthetic material designed for moisture management.
  • Drainage holes are located along the center of the midsole and are intended for water drainage.
  • Traditional Sockliner provides additional underfoot comfort.
  • Strobel Last with the upper stitched to full length Superfoam, for enhanced cushioning and a soft underfoot feel.
  • 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.
  • Duraplush is a high abrasion blown rubber for resilient impact protection.

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