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I can't speak to it lasting for 72 hours but it's definately effective. I
work with dogs all day and i'm in and out with them while wearing multiple layers for outdoor playtime. I get hot while we're inside and wasn't sure if this would hold up but it did. Check out their commercials, they're hilarious! #abillionlove
![](https://imagedelivery.net/olI9wp0b6luWFB9nPfnqjQ/res/abillionveg/image/upload/f7mff02yzk0y57ugfnqd/1612992894.jpg/w=288)