Lo ngumxube okhethekileyo wombala we-PU wesikhumba owenziwe ngombala omhlophe nomnyama. Inezahluli ezinzima ezilungelelanisiweyo kunye ne-EVA lining, ibe ne-peotection elungileyo yemveliso yangaphakathi, njengeebhotile, izixhobo zokuthambisa kunye njl.
Singumzi-mveliso othe ngqo oneminyaka eyi-15 yamava, okhethekileyo kwimveliso yeemveliso ezilungelelanisiweyo ezifana neengxowa zobungcali zokuzihombisa, iimeko zokuthambisa, njl njl.