Sab saum toj velvet ntaub yog breathable thiab anti hws thiab kev cai luam ntawv yog txais tos.
Lawv yog tsim los ntawm polyurethane ua npuas ncauj uas yog molded rau contours ntawm ko taw thiab muab cushioning thiab shock absorbing.
Lawv kuj tau tsim los muab kev ua haujlwm ntev ntev, yog li koj tuaj yeem paub tseeb tias koj ob txhais taw tau txais kev txhawb nqa thiab xis nyob txhua zaus koj ntaus lub suab.