Black Tencel Jumpsuit. Tencel is an environmentally friendly regenerated fabric from wood cellulose and is a Light-weight, Non-stretchy fabric. 100% Tencel ; Straps 100% Waxed Cotton. Spaghetti straps. Open back. Concealed zip fastening at side. French seams. Cut for a loose fit. Machine wash 30°C. Model is 183cm and is wearing a size S.