This one is just perfect. Its soft, smooth, moulds perfectly to your head, keeps the coldness for quite a long time, easy to lie down or walk around with. Even if i am without a migraine, i still use this for hot weather now. If you have a generic ice cap but want a better one (or trying to decide which ice cap to choose), i 100% recommend this one.
I know many migraine sufferers are sensitive to smell, I keep mine in the plastic zip bag when in the freezer and so far that has stopped the ‘freezer food smell’. The cap itself doesnt have a strong smell at all, i can only notice if i directly sniff it, in which case it smells like the blow up lilos/animals for pools, but this smell may become less as mine is still new.