Leatt GPX 5.5 FlexLock Boots First Look

Leatt just released their new GPX moto boot to the off road community. And if it's anything like their other products it's packed with new technology and maybe a few fancy words. 

Photo: swapmotolive


"Ankle and knee saving off-road boots with adjustable flexlock system"

Leatt Press Release

"The all new Leatt GPX 5.5 FlexLock boot, a 3-year project with long term development and testing using our Pro athletes from all over the world.

Our adjustable FlexLock system reduces forces to the ankle by up to 37% and the knee by up to 35% by locking out the ankle movement when over flexed, giving you that feeling of security.

With great feel of the frame, gear lever and rear brake, these boots instantly feel so good.

You must check out our SlideLock Velcro function, it really is ground-breaking in security fastening boot technology."


  • FlexLock System:
    • Adjustable boot flex
    • LockOut of the ankle movement
    • Force Reduction

  • LockOut ankle movement gives:
    • Up to 37% reduction of ankle forces
    • Up to 35% reduction of forces to the knee
    • Reductions compared to the market leader/most high-end boots

  • Fit:
    • Outstanding first-class fit even for wide feet

  • Ankles:
    • 3D-shaped impact foam over ankles
    • Heel grip ankle design

  • Toe-Box:
    • Low-profile, gear shift friendly shape

  • Sole:
    • DualZone hardness
    • Extended foot peg riding zone for arch and on the blade riding style
    • Steel shank reinforced and CE certified

  • Cuff:
    • SlideLock system
    • Auto-locking, one-way sliding closure

  • Bike Grip:
    • Flat and grippy bike side of the boots for great bike feel

  • Buckles:
    • Forged Aluminum
    • Over-locking function

  • Inner Liner:
    • Breathable mesh 3D liner with anti-slip reinforcement for zero heel lift

  • CE tested and certified as:
    • prEN 13634: 2017

  • Size:
    • US 7-13, UK 6-12, EU 40.5-48, CM 25,5 -31

  • Price
    • $389.99 

Photos @motoshopbend

My Thoughts

Leatt is known for putting a lot of thought into their products and making them really dialed. I like that they call out these will be good for people with wide feet which is one of the reasons I run the Sidi TA's over the Sidi SRS boots.

Photo: @trailboundco see post

The boot is almost like a cross between the Fox Instinct boots and the Alpinestar Tech 10 soles and buckle design. Fox gear never seems to be durable enough for off road riding, a friend actually broke his foot recently running some fox boots when the stick ripped through his boot!

My experience with Alpine star boots is that they were never very waterproof, made for track riding they were very breathable. With my Sidi TA's I haven't had an issue in water crossing. The Leatt mentions nothing about being waterproof but they also dont advertise any air vents so fingers crossed on that.

On my Sidi TA's (and any footwear) I run super feet green insoles to help with arch support so I'm hoping that Leatt has added more arch support into their design which saves some cost. 

 I do like the look of the inside of the boot as it appears to be very grippy which is always a plus when doing hill climbs or accelerating as I'm always pinching the bike with my boots/knees. 


Rocky Mountain MC 


Ryan Sipes in the pits, Photo: vital mx forum post

I'll be interested to see how these boots compared to the Sidi's. Are you planning on getting them? What features are you most excited about?  


Related Boots

Leatt GPX Amazon | Rocky Mountain MC

Sidi TA's Amazon | Rocky Mountain MC

Sidi SRS Crossfire's Amazon

Fox Legion Amazon

Flox Instinct Amazon

Alpinestar Tech 10 Amaon


Leave a comment

Featured collection