The Southern Cross Zip S3 is a 150mm Ankle Boot with a scalloped, padded collar for ease of movement. Made from premium Water Resistant leather, this safety boot features a 200J Steel Toe Cap and industrial grade zipper so you can tie your laces for the perfect fit and use the zipper for easy for on and off. The Materials Nubuck Leather Sanded or buffed into a velvet-like finish, our premium Nubuck Leather is ethically and environmentally sourced from members of the Leather Working Group (LWG). Baltico® Lining A soft, non-abrasive, hydrophobic material that wicks perspiration away from the foot, enabling the skin to remain cool and dry. Ortho Rebound® Footbed Our patented Ortho Rebound® Footbed is uniquely designed to reduce foot fatigue. Made from high quality Polyurethane, it always retains its shape and thickness to ensure support from heel to toe, is antifungal, and the high wicking material keeps your feet cool and dry. Poron Strategically placed high-tech Poron® pads are placed in the sole and under your foot’s peak stress areas. We included Poron® in our Trisole® Comfort Technology, which is now the benchmark for safety boots. TPU Outsole Our standard durable outsole with heat resistance to 130°C. FEATURES Boot Technology   Leather All Steel Blue boots are made from high quality, long-lasting leather, including Nubuck, Full-Grain, TECtuff®, Suede and more.   Steel Toe Cap Made from hardened steel for premium toe protection.   Penetration Resistant An extra tough steel or composite midsole to prevent sharp objects getting through to your foot.   TPU Outsole Our standard durable outsole with heat resistance to 130°C.   Slip & Oil Resistance All Steel Blue footwear is designed to exceed the Slip resistance requirement in both the AS 2210.3 and EN ISO 20345. Our boots are rated as SRC which means that the footwear has been tested in laboratory conditions on both a ceramic tile floor with a Sodium Laureth Sulfate