Worn 5-6 times. Size M This down vest is created using Montbell's renowned technology and materials. It's filled with 1000 fill power EX down, the world's highest quality (※), and the fabric uses an ultra-lightweight and durable thin shell material. Every detail, from the quilting pattern to the components, has been meticulously designed for lightness. It achieves incredibly compact storage, defying the conventional wisdom of insulation wear. This vest truly embodies Montbell's Light & Fast philosophy, making it the ultimate piece. It boasts an astonishingly small storage size, making it perfect for carrying.