Hunter Women Original Chelsea Boots AW22 Trace Elements Ferrous Chelate of winter footwear Trace Elements Ferrous Chelate of Glycine Hydrate E1 Iron 500mg Iron Sulphate Monohydrate E1 Iron 4400mg Calcium Iodate Anhydrate E2 Iodine 314mg Copper Sulphate Pentahydrate E4 Copper 925mg Copper Carbonate Monohydrate E4 Copper 500mg Manganese Chelate of Amino Acids Hydrate E5 Manganese 1150mg Manganous Oxide E5 Manganese 849mg Copper Chelate of Amino Acids Hydrate E4 Copper 575mg Zinc Chelate of Amino Acids Hydrate E6 Zinc 2300mg Zinc Oxide E6 Zinc 2699mg Sodium Selenite E8 Selenium 20mg Organic form of Selenium produced by Saccharomyces Cerevisae CNCM 13399 3b812 5mg Linseed meal is high in omega 3 oil content each boot is handcrafted from natural rubber and vulcanised for superior protection which have been technically designed to protect the wearer's skin from contact with rubber in specific areas