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Slip on the Zoot Ultra Speed 3.0 and go! This lightweight racer features a low profile platform for a responsive ride to keep you quick on your feet. The slipper-like upper provides form-fitting comfort ideal for sockless wear, while a slip-on design ensures ease of entry. Tailor-made to carry you from the bike to the finish, both triathletes and road racers alike will appreciate the swiftness of the Ultra Speed 3.0.

Model Number:

Weight: 5.5 oz (size 8)

Stack Height: Heel (16mm), Forefoot (9mm) 

Available Widths: B=Medium

How It Fits (based on width B)

  • Sizing: Standard running shoe length
  • Heel: Medium
  • Midfoot: Medium to low volume
  • Forefoot: Narrow to medium 
  • Toe-Box Height: Low
  • Arch Structure: Low
  • Shoe Shape: Semi-Curved


The Ultra Speed is a minimum featured, minimum neutral shoe designed for racing.


  • Z-bound is a lightweight, resilient foam used in the heel and forefoot for increased energy return.
  • ZVA full-length midsole provides a lightweight, cushioned ride.
  • Carbon Span+ in the bottom of the midfoot is designed to resist torsional flex.
  • TekSheen is an elastic material throughout the upper that provides an adaptive fit and eliminates the need for laces.
  • BareFit covering the upper is lined with Dri-Lex fabric, which has Smart Silver technology to reduce moisture, odor, and hot spots, and allows for a sockless wear.
  • UltraFit is designed to deliver compression for reduced weight and a secure fit.
  • Tri-Dry drainage holes in the forefoot allow excess water to drain out of the shoe.
  • Intac Grabbers placed on the heel and top of the tongue allow for fast shoe entry.
  • Ultra Tri Sockliner is a perforated insole for speedy water drainage.
  • Strobel Last with the upper stitched to full-length fabric for a comfortable underfoot feel.
  • Carbon Rubber in the heel offers extra durability.

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