December 18, 2025 – A consumer incident report details a severe safety concern regarding Adidas ULTRABOOST 4.0 DNA running shoes, model FY9318. The report indicates that the shoe’s design and construction led to significant friction and abrasion during normal use, resulting in a foot injury that caused bleeding.
Product Details
Incident Overview
On December 1, 2025, an incident was reported concerning the Adidas ULTRABOOST 4.0 DNA running shoes. The user stated that after normal wear, specifically during routine treadmill walking, the shoe’s design caused severe friction and abrasion on their foot, particularly around the left ankle. This friction was significant enough to cause bleeding. The consumer noted that the incident was not due to misuse, extreme activity, or unusual conditions, but rather attributed it to defective materials and construction, including poor cushioning and inadequate support around the heel and upper areas of the shoe. The injury required immediate attention and led to the discontinuation of product use. The consumer has requested an investigation into product safety, consideration for a potential recall, and corrective action to prevent further harm.
Safety Concerns
This incident highlights several potential safety concerns associated with the Adidas ULTRABOOST 4.0 DNA shoes:
- Immediate Dangers: The primary immediate danger is physical injury, including cuts, abrasions, and bleeding, particularly to the feet and ankles. Such injuries can be painful, may require medical attention, and can significantly impair mobility.
- Long-Term Risks: While not detailed in this specific report, repeated friction and injury could potentially lead to chronic skin irritation, infections, scarring, or other dermatological issues if the shoe continues to be worn or if the underlying design flaw persists.
- Who Might Be Affected: Any consumer who purchases and wears the Adidas ULTRABOOST 4.0 DNA (Article No: FY9318) shoes is potentially at risk, regardless of their activity level. The incident occurred during “routine treadmill walking,” suggesting that even light, normal use could trigger the hazard.
- Property Damage Potential: Based on the incident description, there is no indication of potential property damage. The hazard is directly related to personal injury.
What Consumers Should Do
Consumers who own or have recently purchased Adidas ULTRABOOST 4.0 DNA (Article No: FY9318) shoes should take the following steps:
- Immediate Steps to Take: If you experience any discomfort, friction, irritation, or notice any signs of injury (such as redness, blistering, or bleeding) while wearing these shoes, immediately cease use of the product. Clean and attend to any injuries promptly.
- How to Check if You Own the Affected Product: Verify the model and article number of your Adidas ULTRABOOST shoes. The reported model is ULTRABOOST 4.0 DNA with Article No: FY9318. This information is typically found on the shoe’s tag (often inside the tongue) or on the original packaging.
- Prevention Measures: Until further information or action from the manufacturer is available, consumers are advised to exercise caution when wearing these shoes. If you must wear them, inspect them for any unusual seams, rough patches, or areas of poor cushioning that could cause friction. Consider wearing thicker socks or applying protective coverings to vulnerable areas of your feet. However, the safest measure, if experiencing issues, is to discontinue use.
- Reporting Procedures: If you have experienced a similar incident or any injury related to this product, please report it immediately to the U.S. Consumer Product Safety Commission (CPSC) at www.saferproducts.gov. Providing detailed reports helps regulatory bodies track potential hazards and initiate appropriate actions.
Manufacturer’s Response
The manufacturer’s response to this specific incident report is currently unknown. Consumers are awaiting information regarding an investigation, potential recall, or corrective actions from adidas Group.
Legal Help Available
If you or a loved one has been injured by a defective product or suffered property damage due to a product malfunction, you may be entitled to compensation. The experienced product liability attorneys at Farzan Law understand the complexities of defective product cases and can help you navigate the legal process.
Contact us today for a free consultation: 424-325-3112
Our legal team has successfully represented clients in product liability cases involving defective appliances, automotive defects, medical devices, and consumer products. We work on a contingency fee basis, which means you don’t pay unless we win your case.
Note: This information is based on incident reports provided by the U.S. Consumer Product Safety Commission. If you find information that is incorrect, please contact us immediately so we can correct the post to reflect accurate information.
Disclaimer: The information provided in this post is not intended to be legal or medical advice. This article is based on publicly available incident reports. The incidents mentioned have not necessarily been independently verified or adjudicated.