Each of these sweet origami patterned masks is made with a fleece lining. The fleece acts as a layer of warmth but also tends to keep the mask from collapsing onto you mouth while wearing it. The straps are adjustable and each mask has a pincher element in the nose bridge to help hold it in place. All proceeds are donated to Droty Uganda to help build bathroom stalls for girls in school yards. Encouraging girls to stay in school after getting their periods is vital for their futures. Thank you so much for supporting these efforts.