Actually you might try to wear even more ridiculous combinations IRL just to protect yourself from freezing. Though not all storage space will be accessible for obvious reasons 
But honestly, while some clothing combination can give you lots of storage space, there is always a weight limit, wear & tear and lots of other micromanagement. I could just mod a warm T-shirt with 100% full body coverage and 1k storage space, and save a lot of time without that silly exploit of game mechanics…[/quote]
Feet: Woolen socks, x2 pairs, 56k USB modem x1.
Torso/Arms: Dress shirt x1 Jumpers x2, Housecoat, Loose-knit blanket, Feather quilt.
Legs: Underwear x1 Thermal… long-johns?x1, jogging pants x1, cargo pants x1, Housecoat, sheepskin x1, feather quilt.
Head: Scarf, Bobble hat, headphones, Feather Quilt.
True Story.
Winter Layering Level: Legendary++.
Also I need to find a new footwarmer, these new WiFi routers are flimsy as hell and hardly produce any waste heat at all.
Going to have to use my laptop power transformer if this trend continues.