BBZ8000 uses a completely different assembly process from its older brother, BBZ6000 plus a host of new safety features and lightweight components. In addition it's 360º reflective, non-metallic and has built in EN/UKCA certified ankle impact protection (AN) and Achilles support. AN certified protection should not be confused with ankle support claims although its incorporation in our BBZ8000 specification provides both impact protection AND support to the ankles and Achilles areas as well as providing a snug fit of a quality which consigns floppy unsupported safety wellies to history. Cold Insulation (CI) and Heat Insulation (HI) certification ensures all-day comfort. BBZ8000 features a super lightweight nano safety toecap, a lightweight anti-penetration midsole and a weight saving sole bonding process. It's comparable in weight to its moulded polyurethane competitors and just like its older brother it fits like a glove, not like a tube. BBZ8000 is a great product from the ground up so it is vital that the soles incorporate the very latest tread design techniques to maximise grip, extend life and reduce weight. K12 does all of these plus it comes with SRC maximum anti-slip certification and is non-marking. Protection: Lightweight nano safety toecap (SB) | Non-metallic NAIL STOP anti-penetration midsole (P) | Ankle protection certified, 10J impact (AN) | Cold insulation certified to -17°C for 30 minutes (CI) | Heat insulation certified to 150°C for 30 minutes (HI) | Antistatic (A) | Energy absorption seat region (E) | Heat & oil resistant rubber outsole (HRO) | Slip resistant - max test (SRC) Additional features: 100% metal free | Hi-viz colour contrasts | Reflective enhancement to give 360° presence and upwards of 150m visibility | 5mm neoprene with rubber protection | Aerospencer breathable high visibility lining | Achilles ankle support | Kick-off heel spur | Detachable washable insole