**Main Material:** Constructed from thickened pure cotton canvas (or multi-layered canvas), featuring a substantial texture that offers high resistance to heat, abrasion, and combustion.

**Design Features:**

**Full-Coverage Structure:** Envelops the instep, the front section of the sole, and the ankle, providing comprehensive, all-around protection.

**Strap Fastening:** Equipped with gray nylon or cotton straps designed to be securely tied around the calf or the shoe upper, preventing slippage or shifting during work operations.

**Double-Layer Reinforcement:** The instep and toe areas typically feature a double-layer or multi-layer padded/thickened construction, further enhancing resistance against burns and impacts.

**Color & Finish:** Features the natural, undyed color of the original canvas (off-white/beige); reinforced with sturdy stitching and finished with bound edges for enhanced durability and resistance to soiling.