Follow me on this; let’s get a bit technical. The midsole supports the medial longitudinal arch, right from your heel to the ball of your foot. There’s a polyurethane protrusion built on top of the sole that effectively ‘fills in the gap’ right in the middle of your feet.
Now this is quite normal for several sneaker manufacturers.
Adidas do it, for example the NMD Racer features a Thermoplastic polyurethane stabilizer in the arch. However it feels a lot more familiar with the RS-X Toys – a lot more natural and comfortable.
What the RS-X does better is including another polyurethane cushion higher up by the foot’s anterior transverse arch. You would have to peek deep into the sneaker to see it – but you only need a 2 seconds to feel it as soon as you put them on. The T-shaped protrusion cushions the arch of your feet, right at the flex point of the sneaker. As that part of your foot takes the most pressure during a run.
If you’re planning on using the Toys as a show sneaker – then you would just be able to walk around in absolute comfort.
If you’re going to hop on the 2018 bandwagon of chunky sneakers, I’m pretty sure the RS-X Toys is already on your wish list. While aimed at potential collectors – the shoe does serve as a decent running shoe as well. If you’re in the market for one, find a store and try them out. You won’t regret it.