* Qhwv lub plab hlaub mus rau ko taw hauv ib lub khau raj kom txo qhov mob ceg * Tsim tus zipper du rau kev yooj yim rau hnav thiab tshem tawm * Peb lub chamber segmented compression los txhawb kev ntshav ncig * Ob qhov ceev kub tas li, cua sov tam sim no synchronized airbag * 3L twj tso kua cua ntsiag to, nce siab tab sis suab nrov tsawg