Focus on the construction method and protective features. High-quality boots should feature double or triple stitching in high-stress areas and integrated TPU (Thermoplastic Polyurethane) protectors for the shin, ankle, heel, and toes. For waterproof models, inquire about the specific membrane technology used, such as Gore-Tex or proprietary breathable waterproof liners, and request hydrostatic head test reports. Additionally, the soles should be made of oil-resistant, non-slip vulcanized rubber to ensure grip on oily or wet road surfaces.