Levi's LVC Menlo Cossack leatherjacket Einstein size M Used. This is a Menlo Cossack jacket from Levi's LVC.The Cossack jacket is so famous that Einstein loved it all his life and continued to wear it! Double Earl RRL has also commercialized it as a replica and its popularity knows no bounds. All my products are 100% Authentic. International Buyers - Please Note. I do not mark merchandise values below value or mark items as "gifts" - US and International government regulations prohibit such behavior.