One compromise I've learned of with the R-3
Lite is that because it lacks an interior liner to act as a barrier for body oils and dirt, it is more prone to Gore-Tex delamination. My suit has a few spots where Aerostich found it no longer passed their high pressurized water test, but it is still waterproof at a lower PSI. The spots aren't areas where water pools, armpits and back, so it hasn't been an issue for me. If I didn't ride in 100°F+ temps each summer, I'd have gone with the regular Roadcrafter 3. For cold weather, aside from normal layering I do attach their "Non-Electric Chest Insulation Pad" which adds a great windstop at the torso. It's nice to never be the person dangerously pulling over under an overpass to throw on rain gear, or peering out a cafe window wondering if the weather's going to blow over. You just put on your space suit and ride through it all.