The TTAB issued a final decision sustaining Under Armour's opposition against Shapellx's trademark application for 'INNER ARMOR' (Serial No. 91296595). Under Armour, the established athletic apparel company with existing ARMOR-formative marks, successfully argued that Shapellx's mark would cause consumer confusion. The opposition was filed on January 29, 2025, and the decision was issued on March 30, 2026.

For trademark practitioners and brand managers, this case underscores the importance of thorough clearance searches before adopting new marks and active monitoring of competing applications. Companies seeking trademark registration should ensure their marks do not create a likelihood of confusion with established brands, particularly those with portfolio protection in similar goods classes. Shapellx may appeal to the Federal Circuit or refile under a modified mark.