adidas Ultra Boost ST Men Shoes Black/Iron/Red


The adidas Ultra Boost ST is a premium, daily running, support shoe designed for a moderate overpronated foot motion.

adidas Ultra Boost ST Men Shoes Bk/Rd 40.0
In Stock: 15.06
  • Size: 6.5   (40.0 EU)
adidas Ultra Boost ST Men Shoes Bk/Rd 40 2/3
In Stock: 1
  • Size: 7.0   (40 2/3 EU)
adidas Ultra Boost ST Men Shoes Bk/Rd 42 2/3
In Stock: 15.06
  • Size: 8.5   (42 2/3 EU)
adidas Ultra Boost ST Men Shoes Bk/Rd 43 1/3
In Stock: 3
  • Size: 9.0   (43 1/3 EU)
adidas Ultra Boost ST Men Shoes Bk/Rd 46.0
In Stock: 1
  • Size: 11.0   (46.0 EU)
adidas Ultra Boost ST Men Shoes Bk/Rd 47 1/3
In Stock: 15.06
  • Size: 12.0   (47 1/3 EU)


Responsive stability is taken to a new level with the adidas Ultra Boost ST. A multi density boost midsole delivers unmatched energy return while also providing incredible stability in a progressive manner. Along with a seamless prime knit upper and an external heel counter, this daily trainer provides a dynamic wrap with ultimate comfort.

Model Number: AF6518

Weight: 11.6 oz/328.9g (size 9)

Stack Height: 28mm (Heel), 20mm (Forefoot)

Available Widths: D=Medium

How It Fits (based on width D)

  • Sizing: Standard running shoe length
  • Heel: Medium to narrow
  • Midfoot: Medium volume
  • Forefoot: Medium
  • Toebox Height: Medium to low
  • Arch Structure: Medium
  • Shoe Shape: Semi-Curved


  • Boost is a lightweight midsole composed of TPU pellets, delivering a soft and responsive ride.
  • Multi-Density Boost delivers stability while still allowing the foot to work naturally
  • Torsion System uses a thermoplastic unit in the midfoot that allows the forefoot and rearfoot to move independently for increased stability.


  • Stretch Web Outsole runs the full length of the shoe and provides exceptional durability with energized transitions.


  • Primeknit in the forefoot uses a dual density Riemen fit system to support and move with the foot.
  • External Heel Counter wraps the heel for increased security and allows the achilles to move.
  • Adidas Logo overlays are strategically placed to wrap securely around the foot.

Footwear Performance Characteristics

Pronation Grade:

  • Neutral
  • Minimum
  • Moderate
  • Maximum

Heel-To-Toe Drop (mm):

  • 0
  • 1-2
  • 3-4
  • 5-6
  • 7-8
  • 9-10
  • 11+

Stack Height:

  • Barefoot
  • Minimal
  • Low
  • Medium
  • High
  • Maximal


  • Road
  • Road/Trail
  • Hard Trail
  • Varied Trail
  • Soft Trail

Shoe Type:

  • Premium
  • Standard
  • Performance
  • Racing

Shoe Help Video (English Only)