Flexible Lightweight Composite Midsole, Pierce-Resistant to 1100kN. Hardwearing Canvas Upper with Micro-Fresh? Technology. Outer Material: Canvas Steel Toe-Cap and SRA Rated Slip Resistant Sole. Canvas Work Shoe. Combines Strength, Durability and Comfort to Beat the Rigours of Trade Work. With a Pair of Grey mad4tools Boot Socks, Thick and Soft for Comfort.