Hello I was wondering what you guys do during winter. Sadly I usually wear boots (but without socks at least!)
If you want the most minimalist option out there, Sue Kenney has made this available: https://www.suekenney.ca/product-page/barefoot-socks-for-cold-feet
Though if for any reason you want something a bit more rigid (which would get into foot prison territory), yet still as flexible as possible (with zero-drop soles), Xero Shoes' Alpine Winter Boots are a good option. Plus many other minimalist shoe companies (such as Feelgrounds, Groundies, Wildings, Lems, Softstar, etc.) have good options too.
Peloton is a high quality well known gym equipment supplier that has bikes for fitness and other home fitness clothing and apparel.
Imagine this situation; you lied down comfortably on your bed after having put down the baby. You have pumped the milk so even if the baby wakes up, you can hand that bottle to him. But wait, it has turned cold.