I don't own one, and I have no idea where it would fit in my backcountry adventures. I'm curious to hear about the benefits and intended uses.
Conceptually, I don't understand them. Especially, the ones really really stuffed with down. If my core is that cold, won't my arms be too? Do you use them to supplement your sleeping system for the summer season? Wear while hiking? etc
I'm really really curious, and wondering if I'm missing out on something.
For moving in moderate to cold temperatures, I'm usually fine with a windshirt over my baselayer. For cold hikes, or when stopped, the full on down puffy jacket comes out. Is there room to substitute a vest in there to lighten up the load?


