That is, 100% Waterproof Mascara from Rimmel.
Why, you ask?
Last night, I went to the sauna. It was like 3am, so I had my 'owoot tonight' face on. Sweated buckets, got really dehydrated... yet somehow, remained completely streak free. Amazing. I woke up the morning after with cotton mouth, a pounding headache, and wonderful thick lush lashes.