JB JB Hi Fi Logo PNG Vector (SVG) Free Download JB Image #318958 Asiachan KPOP Image Board JB FilmAffinity. The Biotech 5. 0 Tanker5 is specifically designed to boost performance with its rocker design. It also features an extra long heel counter to provide torsional stability and an off centre last for optimal alignment. This tank is truly built for work! FEATURES Premium Leather Upper PRO DRI Waterproof system, with membrane Padded collar & Leather tongue offers extra comfort Maximum Defense metal free System Off centre last mimics the natural shape and rotation of your foot Fully aerospace lining wicks away moisture, fast drying & extremely comfortable Lace to toe design for better fit Rocker toe offers toe spring & requires less energy to walk 200g Thinsulate insulation Cambrella lining, engineered to add comfort, durabililty & moisture management Helcor high abrasion toe & heel guard for added wear protection WELTREK II Outsole: aggressive lug, oil resistant rubber with lightweight PU midsole 42 oz per 1 2 pair Slip Resistant: SATRA TM144: 1994