Under Armour Authentication Service
Expert Under Armour authentication by independent specialists. Consistent, reliable results with over 99.89% accuracy
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Searching the style number on an Under Armour tag only shows which product the tag belongs to, and copied tags carry real codes. For a reliable Under Armour authenticity check online, a professional authenticator looks at the UA logo, the size and care labels, the stitching and the materials, and on shoes the box label, insoles and outsoles too.
Trusted by 100,000+ customers
It’s been a giant help preventing me from buying fake clothes!!
ALVARO M · 10/2026
My go to authenticator for Chrome hearts jewelry and Vetements hoodies.
They always deliver accurate results on time!
Cliff I · 09/2026
Under Armour Authentication Service
Price
$4.00
Authentication certificate with final outcome
Receive a certificate with the final authentication result for your
Under Armour
item
How it works: start your authentication
Step 1
Upload photos
Begin by uploading images of your item
Step 2
We handle it
Our expert team reviews your item thoroughly
Step 3
Receive your certificate
You’ll receive the results via email, including a unique certificate of authenticity
What we check on Under Armour
How to tell a real Under Armour from a fake
The UA logo is the first thing we check on Under Armour: its shape, edges and placement. The labels, the style number and the stitching then have to agree with the product.
01
UA logo
Shape, edges and placement of the interlocking UA logo, printed or embroidered.
02
Size and care labels
Font, layout and print quality of the neck, size and care labels.
03
Style number
Whether the style number on the tag matches the product type and color, not only whether it exists.
04
Stitching and seams
Even, straight stitching and clean seam finishing on stretch and compression fabrics.
05
Zips and hardware
Zip branding, pulls and buckles on jackets and backpacks.
06
Shoes: box label and size tag
Style code, size and color matching between the box label and the size tag.
Authenticated. For Charity.
To celebrate ten years of British Red Cross second-hand fashion on eBay UK, pre-loved designer pieces will be auctioned, each one authenticated by LegitGrails
On clothing it is on a small white label under the wash and care labels, after STYLE or a season code such as FW or SS. On shoes it is the ART NO. on the label inside the tongue: a 7-digit style number and a 3-digit color code. Under Armour's digital product passport page lets you enter a style number to see which product it belongs to, but that does not prove an item is real, because counterfeit tags copy real codes. Upload photos and an authenticator checks whether the code matches the item and whether the logo, labels and construction match verified Under Armour references.
Yes. For shoes, photograph both sides, the size tag, the insoles, the outsoles and the box label. For a backpack, photograph the front logo, the zips and pulls, the straps, the interior and every label. We check each detail against verified Under Armour references.
Yes. Ask the seller for photos of the logo, every label, the stitching and, for shoes, the size tag and box label. Upload them before you pay and a professional authenticator returns a verdict, Authentic or Fake.
Copies usually pass at a distance, so we look at what they get wrong up close: the edges of the UA logo, label fonts and print, the style number against the product and the seam finishing. If the photos are not enough to decide, we ask for more.
For the most accurate and quick authentication process, we advise you to upload clear photos of the areas visible when clicking 'Upload photos' on this page. We quickly determine if the uploaded photo meets our criteria. If your photos do not meet the criteria, you will receive a request for more and/or clearer photos. Check out Photo Instructions to find clear examples for each detail.
We provide a range of authentication response times to suit your needs, with options including 12 hours, 6 hours, 2 hours, and 30 minutes.
In the unfortunate event that your item is deemed counterfeit by LegitGrails, we will provide you with a comprehensive report of our findings and inform you of the result.
If you have additional questions or concerns about the service, please feel free to contact our customer support team. We are available 24/7 to assist you with any inquiries, feedback, or issues you may encounter. You can reach us through our live chat on the website, our email support@legitgrails.com, or visit our Help Center. We will respond as soon as possible.
