To clear security efficiently in 2026, you should wear shoes made of non-metallic materials like canvas, leather, or synthetic fabrics with rubber or composite soles. Standard sneakers (like All-Birds or Vans), plastic-soled loafers, and most athletic running shoes are "safe" choices. The primary culprits for setting off detectors are boots with steel shanks, high heels with metal support rods, and shoes with heavy decorative metal buckles or studs. In 2026, many frequent flyers opt for "slip-on" styles to prepare for the possibility that a machine may still request shoe removal regardless of material. While TSA PreCheck members can typically leave their shoes on, even they will be asked to remove them if a "bulky" sole (like a lug-soled Chelsea boot) contains a hidden metal shank or if the machine's AI-driven scanner detects a suspicious density that requires a secondary x-ray.