Wakishara Secret Film 2 sheets (for both armpits, 1 use) When you apply this, sweat is contained within the sheet, preventing sweat stains on the armpits of your T-shirt. It's ultra-thin and stretchy, so it doesn't bulk up and feels comfortable. The film itself is transparent, so it's not noticeable. Because it's ultra-thin and transparent, it can also be used with sleeveless tops and dresses. For those who want to try it. Wakishara Sheet Wakishara Film Underarm sweat prevention Underarm sweat pad Blocks underarm sweat Prevents sweat stains, deodorizing sheet, underarm sweat