Sesto Senso Thermo Active Moro CL12 Neck Gaiter A pleasant-to-touch, versatile neck gaiter from Sesto Senso. The neck gaiter is characterised by its flexibility, allowing it to be used in various ways, including as a mask, scarf, head covering, neckerchief, or bandana. Composition: 94% Elana, 6% Elastane. One size fits all.