You can’t see them in a lot of detail, but Selkie is indeed wearing her Sue and Kathryn boots.

(It’s an old strip but good lord do I still love the Panel 1 expression on Selkie back there. XD)

↓ Transcript
The action and dialogue in the final two panels was originally something different (that I may reuse later so no telling), but discussions in the previous strip's commentary gave me cause to meditate on how cold dry air would affect Selkie's breathing, which I hadn't considered. So, thanks gang! 😀