Do I really need expensive gear?

You don't need the most expensive brand, but you absolutely need technical fabrics. If you show up in a denim jacket or cotton hoodie, you will be cold and miserable within 20 minutes.

Can I bring an umbrella?

No. The wind in Iceland is famous for snapping umbrellas. A hooded, waterproof jacket is the only way to stay dry.

Is it worth buying crampons?

If you are traveling between November and April, buy 'micro-spikes' to slip over your boots. They are essential for walking on icy parking lots near waterfalls.

Mastering the Layering Game: Packing for Iceland

To survive Iceland's weather, pack exclusively in synthetic or wool layers and bring a high-quality waterproof shell. Leave the cotton at home, as it stays wet and cold if you get caught in the frequent rain or mist.

Base layer: moisture management. Pack 3-4 sets of thermal base layers made of merino wool or high-quality synthetic. Do not bring cotton, as it loses its insulation properties once damp.
Mid layer: insulation. Bring a fleece jacket or a lightweight down/synthetic puffer. You need this to trap body heat, and it should be easy to strip off if you start hiking hard.
Outer layer: the armor. Your outer shell must be windproof and waterproof—not just water-resistant. A GORE-TEX (or similar) jacket and matching rain pants are mandatory, even if the forecast looks sunny.
Footwear: stability and dryness. Bring one pair of waterproof, broken-in hiking boots with good ankle support and aggressive tread. You will be walking on mud, ice, and uneven lava rock.
Accessories. Pack a wool beanie, a pair of lightweight touchscreen-compatible gloves, and a buff or neck gaiter. These items are small but essential when the wind picks up.

Do I really need expensive gear?: You don't need the most expensive brand, but you absolutely need technical fabrics. If you show up in a denim jacket or cotton hoodie, you will be cold and miserable within 20 minutes.
Can I bring an umbrella?: No. The wind in Iceland is famous for snapping umbrellas. A hooded, waterproof jacket is the only way to stay dry.
Is it worth buying crampons?: If you are traveling between November and April, buy 'micro-spikes' to slip over your boots. They are essential for walking on icy parking lots near waterfalls.