Sadly both 13" & 15" Touch Bar models are soldered!

All of the Retina models have soldered RAM only the older non-Retina models have upgradable RAM. The newer Touch Bar (2016 & 2017) systems SSD storage is now soldered as well.

Rumor has it a Pro's MacBook Pro will be coming out which is hoped to have upgradable RAM & storage but we'll need to wait and see if Apple got the message when they intro'ed the late 2016 model and got a good scolding by the working Pro's who need more RAM, upgradable storage and USB-A ports.