Internal metatarsal boot made with Poron XRD technology. Designed for comfort and to carry out the same tasks as a normal, less flexible external metatarsal boot. Extreme impact protection, PU/RUBBER, Non metallic, 200 Joule composite toe cap, Composite Reinforced midsole protection, Metatarsal impact protection, Shock absorber heel, Anti-static, Heat resistant to 300?C, Slip resistant, Water resistant leather upper, Waterproof membrane lining, Breathable Thinsulate membrane lining, Full length foam fabric footbed for excellent comfort, Conforms to EN ISO 20345:2011 S3 WR M SRC HRO