1. Hom khau: (cov ntawv luv: qauv), uas yog, qhov ntev thiab qhov dav ntawm lub khau, seb qhov dav thiab nruj ntawm lub cev khau ntawm ko taw puas yog?
2. Sab saum toj: Seb lub softness ntawm tawv yuav ua tau ntuj thiab conformable thaum taug kev.
3. Lub xeev khau: tuaj yeem ua rau tag nrho lub xeev khau khi rau ntawm ko taw yam tsis txhob tsoo ko taw, xoob tab sis tsis tawm, elastic.
4. Pem hauv ntej ncoo: seb lub vibration muaj nuj nqi, hws nqus dej muaj nuj nqi, massage muaj nuj nqi, thiab kev noj qab haus huv muaj nuj nqi qauv raug saws.
5. Hauv ob sab phlu: seb puas muaj kev xaiv kom raug ntawm kev ua pa, ua haujlwm tsis muaj dej, ua haujlwm sov so, thiab cov khoom siv tiv thaiv ib puag ncig.
6. Sole: Xaiv lub substrate thiab anti-ris hauv qab yuav tsum tau rau ntau qib ntawm kev siv nyob rau hauv cheeb tsam thiab ntau yam ib puag ncig, xws li: kev siv ntawm kuj anti-slip, lub teeb yuag substrate nyob rau hauv ib tug zoo ib puag ncig, thiab kev co muaj nuj nqi tseem ceeb. Qhov chaw sab nraum zoov ib puag ncig txais kev txhawb nqa los tiv thaiv plam thiab hnav-resistant substrate los tiv thaiv kev siv hauv ib puag ncig hnyav. Nws yog subdivided rau hauv: cov neeg ua haujlwm dawb-dab tshos, cov neeg ua haujlwm xiav-dub, nyiaj hli, kev lag luam kev lag luam, kev lag luam teeb, kev lag luam hnyav, kev lag luam hauv tsev, kev lag luam, kev lag luam, thiab lwm yam.
