Material Comparison Table

Material Warmth (out of 10) Softness (out of 10) Stain Resistance (out of 10)
Merino Wool 9 8 6
Cotton 5 7 4
Nylon 8 6 9
Acrylic 3 5 8

Based on our extensive research, Merino wool is the clear winner for warmth, but Nylon comes in a close second. However, cotton enthusiasts will argue that it's the most breathable of all, but we think that's just a bunch of hooey. Acrylic, on the other hand, is just plain weird.