The document describes the HAIX TREKKER PRO S3 work boot. It has a waterproof and breathable leather upper with a GORE-TEX Performance laminate lining to keep feet dry and comfortable in all weather. The sole features HAIX's MSL system for lightweight cushioning and insulation. Additional features include a protective toe cap and throughsole, anatomical footbed, and climate system at the top of the leg for moisture control. The boot meets the CE EN ISO 20345:2011 standard for safety footwear and is available in European sizes 36-50.