That's weird. I saw the text about the merino buff being longer (not bigger in circumference) but the dimensions don't agree.

Merino Buff:
Dimensions: 20.7” x 9.6”

Original Buff:
Dimensions: 52cm x 24.5cm or 20.7” x 9.6”

BTW, I saw that they now have a headband buff would might make some of you happier. I think my big-headed hubby likes the length of the standard Buff.