Things have come on since my earliest days on the hills – Aran jumper, cord breeches, wax jacket and, de riguer, red socks.
Modern kit, even the cheapest, is brilliant by comparison. My standard kit is
Helly Hansen vests
Light fleece
Rab softshell jacket
Mammut Basejump trousers
Cheap Pertex windsmock
Rab Event jacket
Arcteryx overtrousers
(or if it’s really hot, Coolmax top and Rohan shorts)
Hat, gloves
Map, compass, headtorch, whistle (though on well known walks in good conditions I might not bother).
I’ve always preferred close fitting sacs, I think they carry better. Usually an Arcteryx Needle with a water proof inner bag.
Sigg bottles, Vango stainless steel flask.
In winter I add
North Face down vest or Mountain Equipment duvet depending on conditions
Extra hat and gloves (possibly Dachstein mitts)
Silk inner gloves
2 man bivi shelter
If it’s really grim I might wear long johns, fleece salopettes, a heavier Berghaus Mera Peak jacket – or stay in!
Boots and socks
3 season – Scarpa SL, Coolmax inner socks and Bridgedale outers
Winter – Scarpa Manta, Coolmax inners and Thorlo mountaineering socks.
Axe and crampons if conditions require them.
If you want to get out in the snow it depends where you are going. Stomping around in soft snow on flat ground, or modest gradients, you’ll be OK in boots alone. A pair of trekking poles can be useful. Once it starts getting steep, technical, exposed, hard snow/ice, that’s when you’ll be needing proper winter gear and the knowledge to use it without stabbing yourself.