Waterproof thom khwm feem ntau hu ua "cov thom khwm tsis muaj dej." Txawm li cas los xij, tseem muaj cov npe tshwj xeeb thiab cov qauv uas yuav muaj lawv tus kheej lub npe lossis cov cim lag luam. Qee qhov nrov thom khwm tsis muaj dej muaj xws li Sealskinz, Dexshell, thiab Showers Pass. Cov thom khwm no yog tsim los ua kom koj txhais taw qhuav thiab tiv thaiv dej, ua rau lawv haum rau kev ua si sab nraum zoov xws li hiking, nuv ntses, thiab caij tsheb kauj vab.
Cov thom khwm tsis muaj dej feem ntau yog tsim los ntawm cov ntaub ntawv uas tiv thaiv dej los ntawm cov ntaub thiab ncav cuag koj txhais taw. Lawv feem ntau tsim nrog ntau txheej txheej los yog cov thev naus laus zis los xyuas kom muaj kev tiv thaiv dej zoo.
Qee yam nta thiab thev naus laus zis pom hauv cov thom khwm tsis muaj dej muaj xws li:
Waterproof membranes: Cov no yog nyias txheej feem ntau ua los ntawm cov ntaub ntawv xws li ePTFE (exanded polytetrafluoroethylene) los yog polyurethane uas yog laminated rau ntawm lub thom khwm ntaub. Cov membranes no muaj micropores uas tso cai rau dej vapor khiav tawm tab sis muaj me me kom tiv thaiv cov tee dej nkag mus.
Seam-sealed siv: Cov seams ntawm cov thom khwm tsis muaj dej yog feem ntau kaw los yog kaw kom tiv thaiv dej los ntawm kev sib tsoo.
Breathability: Thaum cov dej tsis muaj dej yog qhov tseem ceeb, nws tseem ceeb sib npaug rau cov thom khwm kom ua pa kom hws thiab ya raws kom dim. Qhov no pab ua kom koj txhais taw qhuav thiab xis nyob thaum ua haujlwm.
Moisture-wicking zog: Cov thom khwm tsis muaj dej tuaj yeem siv cov ntaub ntub dej los yog cov thev naus laus zis los rub tawm hws tawm ntawm daim tawv nqaij, txhim kho kev nplij siab tag nrho.
Rwb thaiv tsev: Qee cov thom khwm tsis zoo tuaj nrog cov rwb thaiv tsev ntxiv los muab kev sov so hauv qhov txias thiab ntub dej. Cov thom khwm no yuav muaj cov khoom siv tuab dua lossis siv cov ntaub ntawv zoo li merino wool los txhim kho cov khoom siv thermal.
Cov thom khwm tsis muaj dej yog feem ntau siv rau ntau yam kev ua si sab nraum zoov xws li hiking, trekking, camping, taug kev, thiab nuv ntses. Lawv muab kev tiv thaiv thiab kev nplij siab, tso cai rau koj txaus siab rau koj txoj kev taug txuj kev nyuaj yam tsis muaj kev txhawj xeeb txog cov ko taw ntub dej lossis cov pob khaus los ntawm cov dej noo.