As I realized from each of my journeys to Iceland, base layers are key. In case your itinerary entails any tour exterior, like my tour of the lava caves (that are something however lava scorching), begin with a breathable base in a cloth like wool that, in contrast to cotton, received’t depart you soaked and chilly in the long term. Observe it with a mid-layer like a fleece pullover or, in my case, a down vest that insulates and traps physique warmth. High all of it off with waterproof mountain climbing boots (worn over wool socks) and a wind-proof or wind-resistant shell. For the latter, I went with a recycled down jacket, created from used clothes and bedding, although I’d suggest a longer-fitting parka for a extra prolonged outside tour.