Size 11.5 - Nike X SFB Mountain/Undercover Boots Blue Red suede (BV4580 400)This Nike X SFB Mountain Undercover Boots in blue and red suede feature a UK shoe size of 9. 5, US size 11. 5, and EU size 44. 5. They are designed as athletic boots with a standard shoe width, showcasing a multicolor scheme that complements the suede upper material. The model, BV4580 400, was released in 2019 as part of the Nike X Undercover product line, highlighting their stylish and functional design suitable for men's wear. No box. Stains. 12529.