165931 Get Your Shift Together. The AERO-TAC Boot is designed to move with you, not against you. Weighing just 15.5 oz for the standard 5-inch model, it delivers running-shoe comfort with tactical-grade performance. The metal-free composite toe provides reliable protection without added bulk, while the hyperfused TPU upper enhances breathability and durability. Finished with the REZ-TRAC outsole for superior traction, the AERO-TAC helps you stay sharp and be Better Prepared To Respond. Upper Materials: Poly mesh with hyperfused TPU layersInterior Lining: Poly mesh with Aegis® anti-microbial treatmentZippers: YKK®Shank: NylonSafety Toe: Nylon and fiberglass mixToe Protection: TPU toe capInsole: Ortholite® with open-cell technologyMidsole: Proprietary EVA/TPU foam blendOutsole Slip Resistance: exceeds EN 20345:20222 and ASTM F3445-21Metal-free This boot is light as $%! The AERO-TAC is ultra light, insanely tough, and designed to remain comfortable when the shift gets real. Weighing in at just 15.5 ounces for the standard 5-inch model, the AERO-TAC is arguably the lightest tactical boot EVER. Hyperfusion Technology TPU overlays are seamlessly fused with the mesh, preventing delamination, and resulting in a lighter, more abrasion-resistant surface. REZ-TRAC keeps you running The proprietary REZ-TRAC tread pattern provides traction and stability in all directions, so youll be better prepared for any response.