This is my first time working with this super squishy yarn, Woolfolk FLETTE BULKY. Boucle is definitely a design to handle on the knitting needles, but if you are following a pattern, make sure to keep a row counter handy as it might be a little hard counting your rows in this super textured yarn.
Size 1 of this headband fits me quite snug on, so this is definitely for the demonstration purposes. The yarn is stretchy though and the finished circumference fit me with 4 inches of negative ease, which is just not my general preference.

The resulting headband is so lightweight and warm though! And the textured yarn makes it super squishy!