ASICS full-zip jersey made of lightweight material, featuring a black and blue color scheme. - Brand: ASICS - Color: Black/Blue - Style: Jersey - Design: Full-zip - Material: Lightweight material Thank you for viewing. I am a beginner on Mercari. This is a used item from about 10 years ago. It is labeled as L. My child wore this when they were in elementary school, around 150-160cm tall, for track and field and baseball. It's a thin, "shaka-shaka" material (likely referring to a nylon or similar fabric).