Which is warmer, the Caribou or the Icefield?

The Icefield. It is rated to -148°F and built for low-activity standing in extreme cold. The Caribou is rated for heavy snow but owners say it runs less warm than expected.

Which is better for walking around town?

The Caribou. It is about 1.75 lb lighter per pair and has a lower shaft, so it is easier to walk in. The Icefield is bulky and stiff for pavement.

The Icefield has fewer durability complaints. Caribou owners report cracked rubber at the heel and insoles that bunch up.

Is the Icefield worth stepping up to over the Caribou?

Yes if you face deep cold, deep snow or long stretches outdoors. If you only need a boot for errands and short walks, the lighter Caribou is enough.

Do the Caribou laces keep water out?

No. Sorel states the laces and zippers are not waterproof, though the upper and seams are sealed.

Are either good for wide feet?

Caribou owners with wider feet report a good fit. The Icefield has a roomy multi-layer inner boot but a bulkier shell.

Sorel Caribou Women's Boot vs Baffin Icefield Women's Boots

The Baffin Icefield is the warmer, taller, more weatherproof boot, built for standing around in serious cold. The Sorel Caribou is lighter and easier to walk in, but owners report cracked rubber, bunched insoles and less warmth than advertised. Buy the Icefield if cold protection is the priority; buy the Caribou if you want a lighter boot for town and short walks.

Choose the Sorel Caribou if you want a lighter, lower-cut winter boot for shoveling, errands and short walks in snow.
Choose the Baffin Icefield if you face extreme cold, deep snow or long periods outdoors with low activity.

Prices

Sorel Caribou Women's Boot: $40.00 at startautomotive.ca (last seen Nov 6)
Baffin Icefield Women's Boots: $99.95 at Sportsman's Guide (last seen Nov 14)
Difference: the Sorel Caribou Women's Boot is $59.95 cheaper than the Baffin Icefield Women's Boots at the latest prices (Nov 6 and Nov 14)