Black TENCEL TM Lyocell Blend Sleeveless Blouse from Mavi s Mavi Edition collection. Fitted, body-hugging cut. V-neck. Sleeveless. With the naturally soft texture of TENCEL TM, it gives a gentle touch to the skin, breathable fabric throughout the day, and increased wearing comfort. What is TENCEL TM? TENCEL TM branded lyocell and modal fibers produced in an environmentally friendly way from sustainably sourced wood are biodegradable. TENCEL TM is a brand of Lenzing AG.