Khau puam muaj ob ntu sib txuas: sab saud thiab sab hauv qab. Sab saud yog ua los ntawm paj rwb lossis polyester, uas muaj qhov zoo ntawm kev ywj pheej thiab tsis yooj yim nqus dej. Nws tuaj yeem txo qhov tsis kam ntawm dej thaum ua luam dej. Muaj ib txoj siv khi, nws lub luag haujlwm yog ua rau khau puam thiab qhov concave ntawm sab hauv qab ntawm ko taw tuaj yeem txuas ua ke, yog li khau thiab ko taw tau sib koom ua ke, thiab qhov tsis kam rau ko taw thaum ua luam dej tau txo qis zoo dua. Hauv qab ntawm ko taw yog ua los ntawm cov roj hmab mos thiab nyias heev, nws lub luag haujlwm yog tiv thaiv cov tawv nqaij ntses lossis pob zeb tawv ntawm ko taw, thiab kuj tuaj yeem ua rau tus neeg hnav muaj kev xav zoo ntawm kev taug kev ntawm ntug hiav txwv nrog ko taw liab qab. Nrog rau kev txhim kho tas mus li ntawm lub zej zog, ntau thiab ntau khau puam tau tsim tawm. Txawm li cas los xij, thaum qee cov khau puam raug ua thiab hnav, lawv feem ntau yooj yim ntub los ntawm dej hiav txwv lossis dej nag, yog li dej yooj yim raug nias tawm, uas cuam tshuam rau kev nplij siab ntawm cov khau tom qab hnav. , Muaj qhov kev sib txuas tsis yooj yim ntawm lub hauv paus thiab sab saud, thiab kev ua haujlwm siv sijhawm thiab siv zog.