想买个螺丝薄风衣，请高手解惑：MountainHardwearEpicDry.QJacket和MountainHardwearRunoffDry.QJacket，款式基本相同，面料都是Dry.Q，透气防水各10000，指标一样，两款价格RunoffJacket稍贵点，为何？哪个更好一点...