These Nike trunks require no special setup; simply wear them as you would any other underwear. They are compatible with all types of clothing, from athletic shorts to tailored trousers, thanks to their tight-fit design which minimizes bulk. For optimal care and to maintain the longevity of the trunks, follow these instructions:- Washing: Machine wash cold with similar colors. Using cold water helps preserve the fabric's integrity and prevents shrinking or fading.- Drying: Tumble dry on low heat. Air drying is also an excellent option to extend the lifespan of the elastane and cotton fibers.- Bleaching: Do not use bleach, as it can damage the fabric and alter the colors.- Ironing: Do not iron the trunks, as high heat can damage the elastic waistband and the fabric blend.- Dry Cleaning: Do not dry clean.Regular washing according to these guidelines will help maintain the hygiene, softness, and supportive fit of your Nike Trunks.