Layer 1 - Microfiber textile, Layer 2 - Pre-layer, Layer 3 - ePM1 textile, Layer 4 - PES textile. Weight per unit: 12 g. Size: ~21 x 13,5 cm. One size fits most. Made in Estonia (EU). Directly from manufacturer. Certified hypoallergenic materials. Safe, comfortable, easy breathable, windproof, soft and skin-friendly. Reusable (washable). Lightweight material allows wear all day long. Helps against involuntary hand touches of the nose and mouth. Elastic strap design makes it suitable for most peopleNot affect the language of communication. Suitable for many activities: indoor/outdoor, office work, sports, crafts, gardening, travel and more. Foldable and easy to carry. Due to sanitary reasons, our face masks cannot be returned. Please Note: Wash hands before applying mask to face. Before first use we recommend to wash mask. Do not wash with other clothes. Do not use bleach.In case of breathing problems or allergy - prohibited to use. NB! Kiiks ja Knihv uses recycled material for packiging. We try to avoid over packaging.