Lub hnab no yog ua los ntawm peb-txheej cov khoom sib xyaw (MOPP / PET / PE), txheej txheej yog MOPP zaj duab xis, thiab cov nyhuv frosted yog qhov zoo rau kev xav, uas ua rau nws qib siab dua. Cov txheej hauv nruab nrab yog dawb cowhide coated aluminized PET, uas tuaj yeem thaiv lub teeb thiab tiv thaiv hluav taws xob ultraviolet. Cov txheej sab hauv yog PE, uas muaj cov khoom sib khi zoo thiab cov khoom thaiv zoo.
Lub hnab nrog zipper tuaj yeem muab ntim rau rov siv dua.