GRADE 6A 22 MOMME MULBERRY FIBRES - Blissy Silk pillowcases are handmade and made from 100% high quality 22 momme pure mulberry silk. We have spent countless hours prototyping, testing and using our products to ensure the highest quality and durability. GOODBYE ALLEGIES - While cotton is a real breeding ground for allergens, silk is totally hypoallergenic, meaning you can start waking up with clearer nasal breasts, dry eyes and easy breathing. If you have sensitive skin, you'll also notice less redness, swelling, and blemishes when sleeping on a hypoallergenic surface like silk. 43% LESS CLUTCH: Sleeping on Blissy Silk relieves pulling, pulling and pressure on hair and skin. International products have different terms, are sold from abroad and may differ from local products, including format, age ratings and language of product, labelling or instructions.