The Belstaff Mutant Blouson Jacket in Asphalt. Belstaff have yet again out done themselves with the outstanding combination of simplicity, practicality & design. The Blouson jacket features button down frontage with a concealed zip, unique to the Mutant Blouson the jacket is embedded with hollowed pressed studs & a single leather patch on the right elbow, two pockets on the front & adjustable strap on the hem. The model is wearing a size large jacket with Edwin ED-55 Jeans.