The Stoic Bombshell jacket is designed more specifically for snowsports. It has a snowskirt (removable) if you want one and the pit zips are mesh lined to keep out snow - a feature that a lot skiers/boarders usually appreciate until you get into the backcountry hiking crowd that wants unimpeded airflow for max ventilation. The Bombshell is slightly stretchy which will aid in active sports, and based on reviewers pics I think the Bombshell is longer cut (which is good for snow). They are both 3L waterproof/breathable material, but the Vaporshell is intended more as a shell for precipitation. The Bombshell would probably be the better jacket for inbounds skiing/riding that will work well on the occasional hike. But I'm going to be trying this Vaporshell out as a splitboarding shell, since it's meant to be so breathable and will be able to pack away quite easily - I don't feel like I really need a powder skirt that much when I've got a backpack strapped up really tight for riding. I'm just sizing up to increase the length and allow for layering.