Leven tank. The Leven is an essential tank with one-inch straps, perfect for layering beneath your cardigan. Great set with the Luxor! Lightweight blend is 75% cashmere and 25% silk. Knit and hand-finished in Scotland. Hand wash. Caci’s review: I designed this with one thing in mind: wear it under everything. (Yes, I admit, I wear it under my ski gear!) I recommend custom ordering in every color!