Cresnel mattress bag is specifically made to withstand the tear and rip from moving.It is made to be significantly thicker and thus stronger than typical mattress bag sold in home improvement stores.Besides thicker, our bags are made with premium grade, all new, non-recycled plastic.You can rest assure that this mattress bags will stay durable in cold winter day, and odourless in hot summer day.Many other mattress bags are made with recycled plastic and become brittle in cold temperature and emit strong odour in hot temperature.Cresnel 100% all-new plastic mattress bags are safe and durable all season, all purpose.Money back satisfaction guarantee.