My brother is something of a serious outdoorsman. And though he's happy to go camping with just a tarp (who needs tents?) and toothbrush, he's also been known to jazz it up a bit, tucking a bottle of wine in his frame pack, despite the long hike ahead.
I like wine, too, but this just seems crazy—not only does the full bottle add serious weight to your bag, but you have to carry the empty glass back down the trail, too. In my book, it's just not worth it.
But Clif Family Winery offers a solution: wine in an Astrapouch. It's a durable bag made of BPA-free plastic, with a layer of food grade polyethylene and PET. Each pouch holds the equivalent of two 750-mL bottles of wine, and has a spigot that keeps oxygen out—it supposedly can keep after you've opened it for up to a month. Plus, it's lighter to carry and has 80% lower carbon footprint than two glass bottles.