17/09/2026
👍 Yes. Not because I care what your hands look like, or because I’m being pedantic about tiny details. It matters because thumb position changes how your hand functions.
There are different ways our thumbs and fingers work together depending on the grip we are trying to produce. That isn’t my opinion - there is a huge amount of research into hand function, grip patterns, thumb mechanics and how we hold and manipulate objects.
When we hold the reins, we need enough stability to maintain them while still allowing the fingers to detect changes in tension and make small, controlled adjustments. Where the rein sits beneath the thumb changes how the thumb interacts with it, the grip we create and how the rest of the hand and wrist work.
Simply being told “thumbs on top” doesn’t actually tell us very much about any of that. Your thumb can technically be “on top” in several very different positions, creating very different grips.
And that is exactly why I created the Insight Gloves.
The markings give you a quick, easy visual reference so you can actually see where your thumb, fingers and wrist are positioned, recognise when they change and correct them yourself - rather than relying on a vague instruction about where your hands should be.
You might have held your reins the same way for 20 years. You might think analysing thumb position is far too detailed. You might feel that you already have good contact.
But none of that changes how the human hand works. And your horse may have a different opinion about how good that contact feels.
Want to understand why the fingers, thumb, wrist, elbow and shoulder matter, and how they work together when we use the reins? Sign up for the Riding Ready Reins Course.