Compare the sleeve length, chest width, and overall shirt length with a T-shirt your son already wears comfortably. The sleeves should reach near his wrists without covering his hands during play or school activities. Avoid sizing up just for growing room if the extra sleeve length gets in his way. For more sizing help, see our children's clothing size guide.

Turn the shirt inside out before washing to help reduce friction against the crab graphic. Machine wash cold on a gentle cycle with similar colors and mild detergent, or hand wash if preferred. Avoid bleach and direct ironing over the print. Hang drying is a gentle option, while tumble drying on low is also listed in the care instructions.

It can work as a base layer under a zip hoodie, denim jacket, or lightweight fall coat. Choose an outer layer with enough room through the shoulders and arms, and smooth the T-shirt sleeves down before putting it on. If the fabric bunches around the elbows or wrists, check whether the outer layer is too snug. The shirt's exact fabric weight is not specified, so adjust layers to the weather.

Butter yellow pairs well with navy blue jeans, khaki pants, olive green joggers, or light-wash denim. Keep the bottoms relatively simple so the colorful crab graphic remains the focus. For everyday school outfits, add neutral sneakers and a casual jacket when needed. Explore our boys bottoms collection for coordinating pants and joggers.