Workman AEGIS Snow Jacket Navy x Black Retail Price: ¥4,900 The size labels from the time of purchase are: Jacket → M Inner Boa → L They can be worn together without any problems and feel fine, but please refrain from purchasing if you are concerned. Only tried on. Boa jacket is removable, Boa lining extends to the sleeve cuffs, Very light and warm, designed for skiing and snowboarding.