These shoes feature a regular fit with a traditional lace closure, allowing for a customizable and secure fit. Simply lace up to your preferred snugness, ensuring your foot feels locked in without excessive pressure points. The Adizero Prime X3 Strung is designed for adult male runners, optimized for competitive racing and speed training. To maintain the shoe's performance and longevity, clean the upper gently with a soft brush or damp cloth to remove dirt after use. Avoid machine washing or harsh detergents. Allow the shoes to air dry naturally away from direct heat or sunlight. Store them in a cool, dry place to preserve the integrity of the midsole foam and upper materials. Regularly check the outsole for any embedded debris.