Start with your child’s measurements and Lacoste’s size guide to confirm that size 18 is the right fit. Choose a regular or classic fit so there’s room through the chest and shoulders. Consider fabric weight and color to suit the season and daily activities. If he’s between sizes, opting for the next size up can help with growth and comfort.

Cotton piqué is the hallmark fabric for Lacoste polo shirts, offering a breathable, textured feel. This weave helps the polo hold its shape through wear and washing. Be mindful of fabric weight: lighter piqué keeps you cooler, heavier versions feel sturdier for active days.

For school wear, choose a durable polo with a classic color and a comfortable regular fit. For weekend activities, prioritize breathability and range of motion, so a looser cut or lighter fabric helps. Both settings benefit from the same trusted Lacoste polo, chosen for fit and ease of care.

Always wash in cold water with like colors and a mild detergent. Turn the polo inside out, use a gentle cycle, and avoid overloading the washer. Dry on low heat or air-dry to prevent shrinking and color fading; skip chlorine bleach.

Sizing is generally consistent for the boys polo line, including size 18. However, there can be small variances between collections, so check the size chart for each line. If you’re between sizes, choosing the larger one usually preserves length and comfort.

Colors like navy, white, and charcoal are versatile for a lacoste boys size 18 polo and pair with most bottoms. For a smart-casual look, pick a polo in a muted tone with neat stitching. For casual days, brighter shades can hide stains and coordinate with sportswear.