On Cloud X 4 AD "Gourami/Cerulean"

TLDR: The On Cloud X 4 AD ‘Gourami/Cerulean’ is a versatile performance trainer for the gym and everyday wear. Lightweight, flexible and featuring Speedboard® technology – now available for €160.

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With the Cloud X 4 AD, On delivers a true all-rounder for anyone looking for a shoe suitable for a variety of workouts. Whether for the gym, short runs or everyday wear – this model is designed to adapt flexibly to your training.

The upper is made from technical mesh that is not only breathable but also particularly durable. At the same time, the textured structure ensures a high-quality feel and a modern look. The ‘Gourami/Cerulean’ colourway adds a fresh touch without being too loud.

Inside, you’ll find On’s signature technology: a fork-shaped Speedboard® provides dynamism and flexibility, whilst the cushioning delivers a pleasantly soft ride with good energy return. Added to this are improved heel support and a stable rubber outsole, which gives you the grip you need during quick changes of direction.

Weighing in at just around 270 g, the shoe remains pleasantly light, whilst the generous toe box leaves plenty of room for your toes – perfect for longer sessions or intense workouts.

If you want to keep an eye on new performance models, check Grailify regularly – there you’ll find all the latest updates on releases and restocks.

The shoe has been available since 7 April 2026.

You can buy the trainer directly from On and selected retailers for €160. For more shops, it’s worth checking out Grailify.