Revit Acid 4 H2O オートバイのレインパンツ

I'm 191 cm tall and have around 85kg, 97cm around the waist.
Length wise I have no complains but around the waist they are extremely wide, so wide that even with another pair of pants underneath they slip down immediately. On the other hand, there's no way to tighten the pants around the waist. You either fit in this size, either don't.
The material looks good, I didn't get the chance to test them in the rain and I won't be able since I can't wear them.
Probably I'll look for a solution with the tailor.
The main issue is not that they are so wide, the main issue is that there's no way to tighten them around the waist so they slip.

Great and durable pants, also comfortable. 100 percent waterproof and dry's very quickly.