Kev nplij siab: Cov khoom siv mos thiab hnav ntawm lub tsho poj huab tais no ua rau nws ua pa thiab nyiam hnav. nws yog zoo meej rau lub caij nplooj zeeg, lub caij ntuj no thiab caij nplooj ntoos hlav.
Loj dua: Qhov loj ntawm tus me nyuam ntxhais hnav khaub ncaws no me dua li qhov loj me, thov xyuas daim ntawv loj ua ntej yuav khoom.
Elastic: Cov hlua elastic ntawm lub duav ua rau nws yooj yim rau cov menyuam yaus hnav thiab tshem tawm. muaj ib lub qhov me me ntawm ib sab ntawm cov ris tsho, uas tuaj yeem muab tso rau hauv qab ntawm cov khaub ncaws.