Lace, it must be remembered, is mostly made of air. This is why it looks, when you are knitting it, like a crumpled mass of yarn. It is the equivalent of a balloon that has not yet been blown up.
This is a Horseshoe Cap made of a yak/silk handspun I bought last year at the farmers market. This hat is knitted from the outside in, starting with a circular needle and switching to double pointed needles when the circumference becomes too small.
Blocking caps is the easiest thing in the world. Just dampen your cap and stretch it over a plate. For lace, you’ll want to use a large enough plate to stretch the wool and get the air in place.
Let your cap dry and remove it from the plate. In wear, it’ll probably crumple back up in some spots, but you’ll hae the beautiful delicate changeability of lace and the warmth of the trapped air — though the crown of this cap is open enough to make it less for warmth and more for pretty.
This is the same pattern that you see below in a handspun angora/wool blend from the same spinner. Different yarns give different results, even with the same pattern.