"First," Brenda said dryly, "I'm not sure we have enough to freeze in that area. Second, I think it's a core body temp thing. It's where we lose most of our body temperature, trunk and head. So I guess you'd use it when it's cold, but not cold enough for a jacket?" In other words, not for either of them, because she could pretty much guarantee that if the temperature dropped below 70, it was always going to be cold enough for a jacket. She was in the same boat as her twin - she'd known it would be way colder in winters in Michigan than it was back in Hawaii, but her idea of layering was putting a t-shirt on over her bikini when she ran into a convenience store for a snack.
There was a rustling from the unzipped messenger bag on her hip, and a gray and black head on a long, slender neck popped out to regard the vest with what appeared to be a mix of fascination and hesitation. "Whoa," came the deep, stereotypical-surfer tones of Keanu, her nene familiar. "That's not, like, made of real down, is it?"
Brenda hid a smile as she stroked the goose's head, then smoothed the ruffled feathers on his back. "I doubt it," she said reassuringly. "And even if it was, neither of us would buy anything that's not synthetic." But she couldn't help the slightly panicked look shot towards her twin. They were utterly lost when it came to winter wear and this was only the first store. It was rare that she even wore long sleeves, let alone tried to build an entire wardrobe to withstand snow. Which she had never seen before.