• Terrain


    Shoes best for road, track and light gravel. See the best road shoes.


    Shoes best for trail, off road, mountains and other unstable surfaces. See the best trail shoes.

    Good to know

    As long as you stick to the road or path, and if you want just one running shoe, buy a road running shoe.

  • Arch support

    Neutral / cushion / high arch

    Shoes for runners who do not need any additional arch support (Around 50% of runners). Best for people with normal, high or medium high arches. See the best neutral shoes.

    Stability / overpronation / normal arch

    Shoes for runners who need mild to moderate arch support (Around 45% of runners). Best for runners with a low arch. See the best stability shoes.

    Motion control / severe overpronation / flat feet

    Shoes for runners who needs a lot of arch support. Best for runners with flat feet. See the best motion control shoes.

    Good to know

    - Rule of thumb: If in doubt, buy neutral shoes to avoid injuries.
    - More about arch support in this video.
    - Find your arch type by following steps from this video.

  • Use

    Daily running

    Cushioned shoes for your daily easy running. Great comfort. See best shoes for daily running.


    Lightweight shoes good for races, interval training, tempo runs and fartlek. Here are the best competition running shoes.

    Good to know

    If you want just one pair of shoes, buy a shoe for daily running.

  • Price
  • Weight
    Men: 7oz
    Women: 6oz
  • Heel to toe drop
    Men: 6mm
    Women: 6mm

    The height difference from the heel to the forefoot, also known as heel drop, toe spring, heel to toe spring or simply drop.

    There are many opinions about what a good heel drop is. We do not recommend any in particular. Lean more in this video.

  • Heel height
    Men: 16mm
    Women: 16mm
  • Forefoot height
    Men: 10mm
    Women: 10mm
  • Width
    Men: Normal
    Women: Normal
  • Release date
    Jul 2018
Show more facts

Expert Reviews

Experts are runners, who post reviews at youtube, directly at RunRepeat or at their own websites. Each expert is categorized from level 1 to level 5 based on expertise. See stats on expert reviews and how we calculate scores here.

Are you an expert? Apply to contribute here.

82 / 100 based on 1 expert reviews

  • 82 / 100 | 220 Triathlon | | Level 2 expert

    Overall, these felt fast and sure-footed while running, although some may prefer a little more cushioning.

  • First look | SportsShoes.com

Become an expert

  • The Asics Gel 451 is a lightweight running shoe that’s designed for the roads. It serves as a spiritual successor to the Gel Hyper Speed, the company’s premier series of racing flats. Its upper unit features a breathable mesh for long-term comfort and dryness, as well as a BOA® Fit System for a fast and secure adjustment.
  • SpEVA is a cushioning piece that attenuates impact shock and gives energy to the foot of the wearer. It’s accompanied by the Gel® unit in the heel. These components work together to ensure a smooth and comfortable underfoot experience. Moreover, the vented underside heightens the intention of this shoe to be breathable.
  • The forefoot section of the external pad makes use of DuraSponge, which is composed of a blown rubber compound. The high-wear areas feature the Asics High Abrasion Rubber or AHAR®.

The Asics Gel 451 is true to size. It accommodates the natural preferences of runners when it comes to length. The available width options are B – Medium for women and D – Medium for men. The semi-curved last and the form-fitting design of the upper traces the natural curve of the human foot.

The forefoot section of the Asics Gel 451’s outsole features the DuraSponge. This blown rubber unit offers traction and protection from abrasion, but it also adds a bit of cushioning through its malleable nature.

AHAR® or Asics High Abrasion Rubber is a material that shields the critical areas of the sole unit from wear and tear. Its capacity to provide grip is a facilitator of surface control.

Flex grooves allow the platform to move in conjunction with the foot. These shallow trenches help in bettering the toe-off phase of the gait cycle.

SpEVA is a cushioning material that runs the entire length of the Asics Gel 451. It’s a lightweight foam that disperses the impact energy generated by the foot-strike, then transfers that dynamic force to the foot and leg of the wearer. Such a process then invigorates the forefoot lift.

The Gel® Cushioning System is comprised of a silicon-based unit that’s placed in the heel section of the platform. Its purpose is to absorb the force created by landing the foot on the ground, thereby staving off any discomfort.

The Magic Sole is made up of a vented platform configuration. This design is meant to encourage breathability and moisture dispersion.

A Perforated Sock Liner adds a bit more cushioning for the underfoot. Its porous build further boosts the breathable purpose of this shoe.

Open Mesh is the Asics Gel 451’s primary upper unit. It is a lightweight and flexible material that looks like a multilayered net. Its ventilation holes allow environmental air to enter the foot-chamber.

A seamless construction permits the foot to experience a smooth coverage that’s free of irritating folds and lumps. The stitched reinforcements are restricted to the exterior frame.

The BOA® System is a fit-adjustment mechanism that involves stitched-on side panels, discrete fabric eyelets, stretchy cords, and a twisting knob. These elements work in tandem to provide a secure yet customizable fit. The wearer doesn’t even need to do any tying or looping; merely twisting the adjustable knob does all the work of the usual tie-and-secure lacing systems.

The padded tongue and collar are responsible for cushioning the top dimensions of the foot while also preventing in-shoe wobbling.

A pull tab is placed on the tip of the tongue unit. This fabric loop helps the runner in wearing and removing the Gel 451.