Review of Givenchy Pi (For Men) by Haesel
Pi is a unique men's fragrance that uses non-floral notes common in women's fragrances and puts a distinctly masculine twist on them. This results in a warm, spicy fragrance with vanilla undertones. Much less overbearing than other men's perfumes on the market. It smells damn sexy on my boyfriend, as well, but I can't imagine a bearlike, macho man wearing it.
Perfumeworld.net describes its fragrance family as "oriental woody ambery" and ambery, powdery, and vanillic.
Apparently, the majority of men right now still aren't confident enough to wear a fragrance that doesn't make them smell like either a Zima or an ox, so you can occasionally find Pi right now in discount stores for amazing prices.