Lub luag haujlwm tseem ceeb ntawm cov khau ua haujlwm yog los tiv thaiv ntau yam kev phom sij hauv chaw ua haujlwm. Lawv tau tsim los tiv thaiv koj txhais taw ntawm kev raug mob xws li kev txiav, kub hnyiab, punctures, thiab cuam tshuam. Piv txwv li, cov khau khau hlau-ntiv taw tuaj yeem tiv thaiv koj cov ntiv taw los ntawm kev sib tsoo los ntawm cov khoom hnyav hnyav, thaum cov khau hluav taws xob muaj kev phom sij tuaj yeem tiv thaiv koj ntawm cov nqi hluav taws xob.
Cov khau ua haujlwm kuj tseem ua rau muaj kev nplij siab rau cov neeg ua haujlwm. Ib hnub ua haujlwm tuaj yeem koom nrog ob peb teev ntawm kev sawv, taug kev, lossis txawm tias nqa hnyav. Cov khau khiab kev nyab xeeb feem ntau yog tsim los nrog kev txhawb nqa insoles thiab cov khoom siv ruaj khov los muab kev txhawb nqa ko taw tsim nyog, txo qis kev qaug zog thiab txo qhov kev pheej hmoo ntawm kev mob ko taw. Kev nyab xeeb kev nyab xeeb khau tuaj yeem txhim kho tus neeg ua haujlwm tsim khoom thiab tag nrho kev txaus siab rau txoj haujlwm.