I'm looking to purchase a Blue Seventy Fusion wetsuit and have no way of trying it on first. On their sizing chart, I fit in two places. An XS is 4'10"-5'3" and 121-143 lbs. A SM is 5'4"-5'7" and 141-165 lbs. I am 5'6", weigh 129-133, and the small amount of weight I could lose wouldn't affect my size. I'm thinking the XS because I will never weigh 140 unless I start body building, but I'm worried about being 3" taller than the max XS height and also reading somewhere their suits run "very small." I'm looking for advice from those of you who have tried any Blue Seventy wetsuit since they all use the same sizing chart. Thanks in advance for any info.

- Dustin Luckenbill

go to a shop that sells them, try them on.

that is really the only way to be sure because those charts do not take in to consideration your body fat percentage.
one of my friends was sized as a womens extra large, even though she was medium, she had been an athlete all her life, and had a great deal of muscle.

Yes, go to a shop to try one on then buy it cheaper online. Generally I would go by height over weight because one can be an XL at 140.