On Womens, Cloud X 4 Black/Eclipse 10 Medium

TLDR Review: On Cloud X 4

Published: January 2nd, 2026

Pros

  • Lightweight design that doesn't weigh you down
  • Supremely comfortable right out of the box with zero brean needed
  • Breathable construction keeps your feet cool and comfortable throughout the day
  • Excellent support for both walking and exercise
  • Highly durable and built to last through multiple wears
  • Easy to clean and maintain
  • Looks significantly more attractive in person than in product photos
  • Consistently reliable quality across repeat purchases

Cons

  • Runs notably small — you'll need to size up by about 2 sizes from your normal shoe size
  • Gets dirty easily, so frequent cleaning will be part of your maintenance routine

Bottom Line

The On Cloud X 4 is a seriously impressive shoe that delivers exceptional comfort, durability, and support without any breaking-in period — perfect if you're looking for an everyday sneaker that performs as well as it looks. Just remember to size up significantly (about 2 sizes larger than usual) to get the right fit, and be prepared for the fact that it'll need regular cleaning to stay looking fresh. If lightweight, immediately comfortable footwear for walking and travel is what you're after, this shoe absolutely delivers on that promise.

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