(1) Check the "three certificates", production license, product qualification certificate, safety identification card. (2) Check the identification. The safety shoes should have the shield identification of safety protection as it belongs to the national labor protection products. (3) Screen safety shoes through the following aspects: Shoe Type: whether the width of shoes is suitable for the foot; Material: leather is preferred; Uppers: whether the whole upper is elastic and suitable for the foot; Insole: whether it possesses functions of cushion, sweat absorbing, massage and health protection. Lining: whether the material is breathable, waterproof, warm keeping and environmental. Sole: The sole should be chosen based on different areas and environments. For Example: the material should be anti-slip and light, with a better cushion function for the good environment; the material should be enhanced anti-slip and abrasion resistant for the bad environment.