They are made with two layers of cotton (one Lilly, one solid) and a fused poly filter stabilizer And comfortable elastic ear pieces. Machine washable. Please choose the pattern as the size. 💕💕 Shipping the next day or the same day as they are ready to ship!!!! NO OFFERS! But if you need more than one comment with the numbers and I’ll make a custom link, to save on shipping Returns are not accepted. No filter pocket