Obviously i will proclaim this a GREAT question 
Not planted and not suggested at all , just in case it is suggested
Before i go on… nothing replaces great coaching, great tuition and guidance in your swim technique and training plans. The suits are here to help.
Huub is the only company who offer this differential in buoyancy profiles. 3mm upper body addresses perfectly the desire for more flexibility, while the stiffer and highly buoyant lower body 5mm is key in raising the legs while the 3mm chest and upper body allows this extra buoyancy to have a true effect on flattening the frontal profile due to allowing the chest to sink more than a 4 or 5mm chest panel.
What we have also done in our search for maximum buoyancy is research the buoyancy of all materials used in wetsuits today, and while many claims are made we discovered the “Golf ball types of neoprene” to be no more buoyant than standard neoprene (Which puzzled us too) but the real “True” increase in buoyancy was found in the multi-layer composites of Neoprene and NBR materials found in life jackets. So we used them…proven.
If you don’t have sinky legs then your choice of suits is vast, and some truly incredible designs from Huub,Orca, Aquasphere, 2xu blueseventy, Zone3 , Xterra,Roka, De-Soto, etc etc and many new suits are available, but should you like the majority not from a swimming background suffer with the sinky legs, then your choice is very few, but we do them very well, in our opinion.
Huub wishes everyone could swim flat, aligned and efficiently, but we have many swim styles among us. Visit www.swimtypes.com to discover if you are “Arnie, Kick-tastic, Over-Glider,Mr Smooth etc”
Yes, i am from Huub, and we are doing all we can to make great products for great swimmers, and aspiring swimmers alike.Sorry if this is a bit too much “sell” but i am proud of our different approach to wetsuits.
huubdesign.com
Oh, do contact beth@huubdesign.com she would love to assist in getting you a suit to try.
Deano
deano@huubdesign.com
The Huub Guy