Svalbard clothes requirements - what is overkill?

Hey everyone

I was hoping to avoid posting this as there are a lot of ‘what clothes will I require for Svalbard?’ type posts. But - I can’t help but wonder if some people’s packing lists are a bit overkill?

For instance, I don’t have a ski jacket or ski pants, expedition type jacket, fleece lined pants, down pants etc. However, I wonder whether with sufficient layering whether these things are truly necessary.

I’m going on a snowmobile, dogsledding and hiking day trips. I’m not concerned for the snowmobile and dogsledding as suitable clothing is required. I will be going on a hiking trip, but then I’m thinking a multi-hour hike should will generate body heat anyway. Other the this, I’ll largely be spending time around town.

I’ll be visiting for several days from 15 March.

I don’t wish to arrive unprepared, but then don’t want to overpack/over prepare unnecessarily.

On a typical day, my proposed layering system can be as follows:

• waterproof hiking boots with thermal insole, sock liners and thick, merino wool rich hiking socks

• compression bottoms (Nike pro core), merino wool rich bottoms + hiking pants

• L/S compression top (Nike pro core), L/S merino wool rich top, fleece, + either a waterproof/goretex jacket or a warm down jacket

• glove liner, thin hiking gloves and mittens

• wool rich hat, 100% merino buff

Notes:

• My hiking bottoms are not waterproof however are the thicker/more durable thickness end for hiking pants - ie fairly resistant to moderate precipitation and fine for hiking in snow.
• I’ve got two waterproof goretex jackets and the one I’m bringing is definitely more durable thickness than you see for a lot of goretex jackets from the main hiking brands. However, by no means a ski jacket or expedition style jacket. On its own, it is not an insulated jacket, but I’m hoping will be sufficient with layering.

Other things I’m considering:

• I have a 700g 700 fill power down jacket (Mountain Equipment Lightline) - but I’m not too sure if this will be necessary if the layering with my waterproof jacket is sufficient?

• Are microspikes recommended for walking around Longyearbyen from mid March? If so I’ll have to buy them after I arrive as I’m travelling with carry-on luggage only.

Any help or advice would be SUPER appreciated! 🙏