Brooks PureGrit 5 Running Shoes NA Imported Air Mesh - Provides ventilation, keeping your feet feeling cool and comfortable. Reinforced Abrasion Panels - Improves the shoes durability and increases stability. Adjustable Midfoot Strap - Offers a more stable and supportive fit. Dust-Shield - Net-like construction, blocks out dust and small debris. Additional Eyelets - Allows the shoe to be 'lace-locked' for a supportive fit.