If any petites are interested in hopping onto the menswear train (which, according to March fashion magazines, are here to stay for at least another season) it's important to keep it in moderation and in proportion to your size. Definitely stay within the petites department to ensure a shorter length and smaller fit. Tuxedo blazers are a little over the top for me, but a slightly boxier / longer wool blazer from Theory? I can entertain that thought. Did you say on sale for over 80% off? Well, I suppose I can try it on...
Jacket: Theory "Fabion" Jacket in 00
Top: Ann Taylor ruffle tank in womens XS (similar here)
Pants: Theory slim pants in 00 (waist taken in and hemmed) - similar here in 00
Naturally, Ann Taylor and Banana Republic each have a rendition of the boyfriend blazer. I find Ann Taylor's (click here) in the Tropical Wool suiting material to be too formal, although the ground pepper color is lovely. The length for the petite sizes is 25 inches, which would hit a little past my hips like a boyfriend blazer should. For reference, the length on my pictured blazer is only about 22 inches.
Banana Republic's version (click here) however, seems to be a more versatile choice. Reviewers complained about how small it runs...which is great news for petites! On sale and still available in size 00 and 0, but the length is not disclosed.