Co-created with athletes for marathons and half marathons, featuring CloudTec Sphere cushioning system for a fast ride and Helion HF hyper foam for energy return.

Raise your race potential
Designed to deliver race-day speed for marathons and half marathons while keeping feet comfortable and supported. Lightweight yet responsive, it helps you maintain endurance from start to finish.

Meet CloudTec Sphere
Discover the latest cushioning system, featuring thin gaps between the forefoot and the midfoot. These spaces allow the foam to move more freely, adapting and flexing in multiple directions for a smoother, more responsive feel. Engineered for speed, it’s designed to enhance your performance.

Breathable upper
The open-weave upper provides lightweight support and breathability, keeping feet comfortable mile after mile.

Key Features:

  • CloudTec Sphere cushioning system engineered for fast runs
  • Lighter, resilient HelionHF hyper foam for energy return
  • Carbon Speedboard for propulsion
  • Adaptable, breathable open-weave upper
  • High-grip rubber outsole
  • Co-created with athletes
  • Removable top midsole provides soft, responsive ride

Brand : On Running

SKU: ONRN-cloudboomstrike2-u

Model # : cloudboomstrike2-u

Gender : Unisex

Shoe Type : Racing

Product Family : On Running Cloudboom

Drop : 5mm

Foot Type : Neutral

Cushioning : Maximum

Width : Standard

Weight : 191g

Free shipping on orders over $140 to Australia*
Shipping on small orders (under $140) only $9.95
Shipping on all orders to NZ only $9.95
Express shipping to Australia & NZ only $15

Standard Shipping (AU) – FREE on orders over $140 and $9.95 on orders under $140. Orders are dispatched within 1 business day. Click here for shipping delivery times

Select ‘Standard Shipping – Auspost Only’ if you would prefer your parcel is sent with Auspost. Otherwise it will be shipped with any of our available carriers. Auspost Only shipping is not available on some very heavy/bulky orders.

Express Shipping (AU/NZ) – Need it faster? Express Shipping is available for $15. Express Shipping is not available on heavy/bulky orders. Orders placed before midday on business days are usually dispatched same day (otherwise within 1 business day). Delivery times in the table below.

Click and Collect – Shop online and collect in our Milton, Brisbane store, free for all orders. Orders are usually ready within 2 hours (during opening hours). Click here for address and opening hours.

Terms and conditions apply, click here for a full overview of our shipping policies

Manufacturing defects covered, replaced or repaired if soon after purchase.

  • If you have selected the wrong product/size for you, or want to exchange/return for any reason except for warranty or our error, this is referred to as a 'change of mind' return.
  • Not all products are eligible for change of mind returns (click here for excluded products).
  • Once you submit a Return Request, we will provide return instructions via email (along with a prepaid return label if applicable). Please wait to receive this before returning any items (Try 2 Anything excluded)
  • Change of mind returns can be resolved by your choice of exchange, full store credit, or a refund. Refunds are subject to a $19.95 admin fee.

For a full overview of our returns and warranty policies, see Returns and Warranties

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