I went with the sizing chart recommendation and bought a medium. Jersey definitely fits on the smaller side - I personally chose not to size up cause I'm short and the large would probably be too long. The fabric has great stretch and is really comfortable. I've taken this on a few rides here in ATX and it's held up to the heat pretty well.
I’m between sizes on the House jerseys, so it's horses for courses: Large fits slightly loose, very comfy and more generous for moving around but gathers up a bit. M is aero-race-fit snug and lays down smooth, good for those purposeful focussed fast days after I've done my push-ups and crunches. It adds at least another 20 watts on the road, Ornot. Like the fantastic bibs, the House jersey materials are super-stretchy and soft, basically disappears once you get moving. The Morocco color is perfection; not yellow, or mustard, or that safety-neon-green, but somehow all of them together. Looks fantastic tied with the Stone Blue vest and Coastal Bolt Storm sock. Will be buying more for sure, but it then will be hard to pick a favorite.
The material allows for a snug fit while not feeling snug. Very soft and comfortable. Love this jersey. Maybe release a brighter, more visible color?