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If you’re looking for a stirrup that improves stability, reduces joint strain and supports a secure leg position, there’s a good chance Flex-On has already caught your eye. Their unique shock-absorbing system, grippy footbeds and ergonomic shaping make them one of the most rider-friendly stirrup brands on the market.
But with several models to choose from, it can be tricky to know which Flex-On stirrup is best for your needs. In this guide, we compare the Safe-On, Green Composite, Aluminium and Aluminium Inclined stirrups to help you decide with confidence.
Before looking at the differences, all Flex-On stirrups share some standout features:
Shock-absorbing elastomer springs to reduce pressure on knees, hips and ankles
Stable, ergonomic footbeds to support a secure lower leg
Offset leather slots for better leg alignment
Excellent grip with Grip or Ultra Grip treads
Customisable magnets and colour options
Strong, durable frames built for daily use
Whether you’re a leisure rider, eventer, showjumper or dressage rider, these fundamentals make Flex-On a game changer for comfort and balance.
Best for: Riders wanting maximum safety and joint protection
The Safe-On is Flex-On’s top-selling safety model. Its standout feature is the flexible outer arm, designed to release during a fall to help prevent the rider’s foot from becoming trapped. Once released, the arm can be easily reattached, making the stirrup ready to ride again.
Built-in safety release mechanism
Superb shock absorption
Ideal for jumping, eventing, hacking and everyday riding
Inclined Ultra Grip footbed encourages a natural heels-down position
Excellent for riders with knee, hip or ankle discomfort
Customisable colours and magnets
If safety and comfort are your priorities, Safe-On is the most secure choice.
Best for: Riders who want lightweight performance at a more accessible price
Made from an organically sourced polymer reinforced with a steel core, the Green Composite stirrups are known for their durability and feather-light feel.
Lightweight and supportive
Superb vibration reduction
Excellent value without sacrificing performance
Ideal for schooling, hacking and competing
Interchangeable magnets for a personalised look
Available with Grip or Ultra Grip footbeds
These are perfect if you want Flex-On comfort and stability without moving to a premium metal frame.
Best for: Riders wanting precision, stability and a premium finish
Machined from a single block of aeronautical aluminium, these stirrups offer a beautifully solid feel underfoot. They deliver slightly more stability than the Green Composite while still absorbing movement effectively.
Strong, rigid and refined
Excellent for riders who like a more connected feel
Ideal for jumping, eventing and competition riders
Ultra Grip tread for maximum security
Premium look and finish
Long-lasting and incredibly durable
They’re especially popular with riders who prefer a traditional aesthetic paired with modern technology.
Best for: Riders who want even deeper heels and sharper lower-leg alignment
The Aluminium Inclined model takes all the benefits of the standard Aluminium stirrup but adds a steeper angled footbed for riders who want more lower-leg discipline and a naturally longer leg position.
Enhanced “heels down” support
Encourages excellent leg alignment
Ideal for jumpers and eventers wanting extra stability
Favoured by riders who struggle with lower-leg movement
Premium aluminium build with excellent durability
If you like the Aluminium but want something even more position-supportive, this is the best pick.
Shock absorption isn't just for the rider — horses benefit from a reduction in impact through the stirrups too. Flex-On’s elastomers help soften the concussion transferred through the rider’s joints and into the saddle, making them a thoughtful choice for sensitive or athletic horses.
| Model | Best For | Key Features | Safety Arm |
|---|---|---|---|
| Safe-On | Riders wanting maximum safety | Shock absorption, security, Ultra Grip | ? Yes |
| Green Composite | Lightweight and budget-friendly performance | Feather-light, durable, colourful | ? No |
| Aluminium | Competition riders wanting stability | Strong, refined, Ultra Grip | ? No |
| Aluminium Inclined | Riders wanting a deeper heel position | Steeper angled footbed, premium finish | ? No |
If you want:
Safety above all → Safe-On
Lightweight comfort at a great price → Green Composite
Premium stability and precision → Aluminium
Even deeper heels and exceptional alignment → Aluminium Inclined
Still unsure? Our knowledgeable team at David Dyer Saddles is always happy to help you find the right stirrups for your riding style, joint comfort and discipline. We offer expert guidance, fast UK delivery and a wide range of Flex-On colours, footbeds and accessories.
