Sale: $ MSRP: $

A nimble and low profile design with a touch of protection from the road, the Inov-8 Road-X Lite 155 features minimal cushioning and a firm ride.



The Inov-8 Road-X 155 is a lightweight, natural running shoe that offers the utmost in proprioception for the minimalist or elite runner. Unlike other Inov-8 models, the Road-X 155 doesn’t incorporate Dynamic Fascia Band but rather relies solely on foot strength from the runner. The Road-X 155 offers a 4mm heel-to-toe height difference that allows the runner to run in a smooth natural running style.

Model Number:

View all colors

Weight: 6.1 oz (size 9)

Stack Height: Heel (10mm), Forefoot (6mm)

Available Widths: D=Medium

How it fits (based on width D) 

  • Sizing: Fits large; purchase 1/2 size smaller than standard running shoe size
  • Heel: Narrow
  • Midfoot: Low to medium volume
  • Forefoot: Medium
  • Toe-Box Height: Low
  • Arch Structure: Low
  • Shoe Shape: Curved


The Road-X 155 is a minimum feature, minimum neutral shoe intended for speedwork and racing.


  • 1 Arrow Shoc-Zone provides minimal underfoot cushioning and a 3mm heel-to-toe drop. This is Inov8's 2nd lowest level of cushioning on their 0-4 arrow scale. 


  • Injected EVA Foam for resilient cushioning with maximum memory retention.
  • Dynamic Fascia Band running from the heel to the forefoot acts as a rigid lever arm, releasing energy with each step and propelling the runner forward.


  • Synthetic Mesh covers the upper for lightweight, breathable coverage.
  • TPU Lacing System uses TPU lacing supports for a strong, lightweight and secure fit.
  • Met-Cradle is a synthetic webbing upper that supports the forefoot and provide a secure fit.
  • 6mm Footbed for additional underfoot comfort.


  • Road-X Lite is a lightweight outsole intended for road racing, speedwork, and everyday training.
  • Fusion Compound is a mix of synthetic rubber and EVA foam for a smooth ride and grip on the road.
  • Meta-Flex groove is located at the forefoot to encourage natural forefoot flex during toe-off.


  • Anatomic Last follows the natural shape of the human foot for a close and comfortable fit.

Footwear Performance Characteristics

Pronation Control: What's This?

  • Neutral
    • Min
    • Mod
  • Support
    • Min
    • Mod
    • Max
  • Motion Control
    • Mod
    • Max

Heel-Toe Offset (mm): What's This?

  • 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

Customer Reviews

Comments: I like the shoe and it's really fast but the back is rigid and on runs over 5 miles it begins to really rub the back of my heel. If there was a little padding or flexibility back there these would be perfect shoes
From: Norm, Buffalo, NY, USA. April 10th 2014

Comments: Inov-8 Road-X Lite 155 runs true to size and in my personal opinion there is no need to run half size smaller or bigger. If you¡'re buying over the internet there is no need to worry because I was previously. The feel and comfort is amazing, they are great for Crossfit and running on dry road surfaces. Very stable and with enough room on the roes. The 3mm drop is present, it makes the Road-X Lite a almost minimalistic shoe, but still gives good protection to the foot. It's a great shoe to do really turn to the minimalistic transition of the 0mm. I'm working on this and the shoe will definitely help for that. Very much recommended for people looking for a great workout and minimalistic running shoe.
From: Christian Scherf, Mexico City, Mexico

Comments: Just received my Inov-8 Road X-Lite 155 in the mail and just had to take them for a spin around the block. I ran a 4 mile loop that has some hills and felt good. The shoe is as minimal as I want to get. Good road feel with durable soles. They feel real spongey in the hand but are firm and responsive on the foot. I like them a lot. A great alternative shoe for short races, tempo runs, and Crossfit.
From: Thomas, Dallas, TX, USA 

Comments: I love this shoe for a cross fitness option.  It has a slightly larger toe box than the 195/230 and it wears extremely light and comfortable.  They have an amazing release from the ground, nearly slipper like.  The soles are fairly smooth and are quite forgiving during double-unders.  These are the most comfortable WOD shoes I own. They run extremely cool.  I do take care not to put the 155's through extremes like mudders, rope or WOD's with a lot of sprint cornering and sidewall pressure. They are definitely constructed for performance over durability so don't expect them to wear like re-purposed basketball low tops. ...But don't let that dissuade you from adding them to your options, the days I do wear these are simply the most comfortable days possible.
From: Rob, San Luis Obispo Ca. USA

Comments: It is really hard for me to overstate how much I love these shoes. I have the "yellow" version, but these are the same shoes. I have tried (and loved) many similar options (Asics Hyperspeed, Piranha, Five-finger KSO, New Balance 730, etc.). The 155s excel because they provide a little more support (this is largely accomplished through the width of the forefoot which is perfect for me) without any loss of ground-feel. 6.1 ounces is still very light and "strange" rubber sole is a miracle; it wears well and provides the right amount cushion.  
From: Jeff, Lodi, CA, USA

Comments: This shoe is perfect! Almost all of my shoes are zero drop so I was surprised that I hardly notice the 3mm drop in these.  They 
were exactly what I was looking for. Not to much cushion, and not too little cushion, just right. I also bought the Inov8 Bare-x 150 which is a zero drop shoe that is just as awesome. But for doing speed work this is the shoe to use.  I finally found a company that knows how to 
make shoes.  Light weight, perfect amount of cushioning so that you can still feel the road yet you don't torture the bottom of your feet, 
0-3mm drop which is perfect (for mid-foot strikers), and a roomy toe box. You won't regret getting this shoe or the bare-x 150 they are 
perfect. I have the Altra Instinct (too much cushion), New Balance Road Zero (uncomfortable), fivefinger bikila (too little cushion), VivoBarefoot Evo (dosen't breath), and Brooks PureCadence (hate arch support).  I ordered a size 11.5 in the bare-x 150 and a size 11 in the road-x 155 making the 155 my speedwork/racing shoe and the 150 my long distance training shoe. 
From: Josh, Dallas, Texas, USA

Comments: This was my second pair of Inov-8's (the 1st being Bare-X 200s).  I sought these out as a middle distance road racer (5K-half marathon) and tempo trainer.  I usually run in zero-drop shoes, but these very minimal drop shoes are a great choice for workouts where I want to give my calves/Achilles a tiny rest, or if my form goes bad on the back end of a hard race.  I have yet to race in them, but they have been awesome for speed workouts.  I typically put about 8 miles in on speed days, and my feet and lower legs don't feel beat down in these shoes despite the great ground feel.  Definitely a good choice if you have strong feet or want strong feet.  I wear them without socks, but if you do wear socks, I would go with as thin a fabric as possible.  Fast, fast shoes!
From: Chas, Cornelius, NC

Comments: Great shoe. Used Shoefitr to determine size to order. I have left foot about a half size smaller than right.  Shoes fit as expected from Shoefitr but the volume not as loose as I like on right foot.  Removed insoles and slightly more volume than I wanted.  Installed support insoles from my Altra shoes and they fit almost perfect.  Right foot felt slightly snug and left foot perfect prior to running.  During run, right foot felt perfect and left slightly loose so next time I'll cinch the laces a little on left foot.  First run in these shoes was a 4 mile route I had run 46 times before.  I have only run this route faster twice before even though I am presently not in my best shape.  These shoes are really comfortable and fast.  Average heart rate only 145 so I must give the shoes some credit.  No blisters, no pain yet.  I may feel different tomorrow.  This is just the kind of shoe I was looking for. The color makes me visible.  Might keep me from being run over. 
From: James, Plano, TX, USA

Comments: Wonderful shoe, terrific ground feel for superb feedback and decent wearing outsole (have about 260-mi on mine and they still look good). The better your form, the better they will wear. I suggest running without the insert for ever better ground feel, however, running sockless is not necessarily an option as seams are non-conducive. As the forefoot wore down, I noticed the heel-toe drop moved from 3mm to 5mm! Therefore, I modded them by cutting half the insert, raising the forefoot, creating a 1-2mm drop. Worked like a charm. Seriously consider this shoe if you want strong feet and natural biomechanics.
From: Marty, Milwaukee, WI

Comments: Consider ordering a half-size smaller than you normally would for a racing flat. I normally wear an 11, but they were too long and the 10 was too short --> 10.5 was just right. 
From: Jereme, Cincinnati, OH, USA