ship from Japan Capacity: MMP-K020 0.2L, MMP-K030 0.3L Insulation efficacy (6 hours): MMP-K020 above 60 degrees, MMP-K030 above 68 degrees Cooling effect (6 hours): MMP-K020 below 10 degrees, MMP-K030 below 9 degrees Achieved weight reduction by our original spinning process. The 0.2L size weighs only 110g, and the 0.3L size weighs 140g, making it ideal for carrying around. Ultra-lightweight slim and compact that fits comfortably in a small bag