Backpacks (los yog tsuas yog hnab ev khoom)
Backpacks yog ib lo lus dav dav rau lub hnab hnav ntawm ob lub xub pwg nyom. Cov yam ntxwv pom tseeb tshaj plaws yog ob txoj hlua ntawm nraub qaum rau fastening rau lub xub pwg nyom. Lawv feem ntau siv los ntawm cov tub ntxhais kawm. Nyob ntawm cov khoom siv, lawv tuaj yeem muab faib ua cov hnab canvas, Oxford hnab ntaub, thiab hnab nylon. Lub ntsiab kom zoo dua ntawm cov hnab ev ntawv yog lawv txoj kev yooj yim, tso tes thiab muab kev yooj yim thaum tawm mus.
Ib leeg - lub xub pwg hnab
Ib leeg- lub xub pwg hnab, raws li lub npe qhia, yog cov hnab ev ntawv uas hnyav ntawm ib lub xub pwg xwb. Lawv tau muab faib ua ib zaug xwb - lub xub pwg hnab thiab crossbody hnab. Ib leeg- cov hnab ev khoom lub xub pwg yog feem ntau me dua hauv lub peev xwm thiab nqa tau yooj yim. Lawv tsis haum rau kev siv thaum mus kawm ntawv, tab sis tuaj yeem siv thaum mus yuav khoom, yog li lawv tau maj mam dhau los ua cov khoom zam. Cov neeg siv khoom tseem ceeb ntawm ib leeg - lub xub pwg hnab ev khoom yog cov tub ntxhais hluas; Txawm li cas los xij, thaum siv ib lub hnab ev ntawv - lub xub pwg nyom, ib tug yuav tsum tau xyuam xim rau lub nra ntawm ib lub xub pwg nyom kom tsis txhob muaj qhov sib npaug ntawm sab laug thiab sab xis lub xub pwg nyom, uas yuav cuam tshuam rau lub cev.
Electronic backpacks
Electronic backpacks yog ib qho derivative ntawm lub tswv yim ntawm lub hnab ev ntawv. Keeb kwm, lawv feem ntau xa mus rau qhov kev pabcuam muaj rau cov tswvcuab los ntawm qee lub vev xaib tshiab thiab cov ntawv nyeem.