Unfortunately the quality of the twins synthetic leather gloves is really bad. I've been using a 16oz pair for less than 5 months and the synthetic material already started to break.
They are far worse than the synthetic 10-oz Leone i've been using until now.
This is a big problem for me, as i need a good pair of synthetic 16oz gloves. Any other ideas?
Regarding shinguards: there are a lot of Leone models who are synthetic and ok, but there are also a few thai brands with models like this:
http://www.muaythaistuff.com/product/TUF-SG01-BLACK/.
I've been using a pair of Fairtex SP5 for almost a year and they are good, maybe a bit too soft.