For shipping your UNIQLO My Melody T-shirt (Japanese size L) from Japan, here are the estimated package dimensions and weight: Package Dimensions: •Length: Approximately 12 inches (30 cm) •Width: Approximately 9 inches (23 cm) •Height: Approximately 1 inch (2.5 cm) Weight: •Approximately 7 ounces (200 grams) These estimates are based on typical packaging for a folded T-shirt and may vary slightly depending on the specific packaging materials 新品. When listing your item on eBay, it’s advisable to round up the weight to the nearest ounce or gram to account for any additional packaging materials, ensuring accurate shipping calculations. For precise measurements, consider measuring and weighing the packaged item before finalizing your listing. If you have any further questions or need additional assistance, feel free to ask!