The 5.11 Mission Ready Chukka boots are designed for all-day comfort, whether standing for hours or moving through crowds. Featuring a D3O® Lite EVA midsole and Ortholite® X-25 insole, they provide maximum cushioning. The Ortholite® Achilles Cuff enhances comfort and heel lock. The Vibram® Overland rubber outsole offers excellent traction on wet and dry surfaces. Made from high-quality natural leather with Agion® antimicrobial treatment. Size: 9.5 US/EU 43 (insole length 28.5 cm). Please feel free to ask any questions.