Hi Julie,
Thanks for your feedback. They are a "Loose Top" style so are meant for people who have wide calves or prefer a looser top, so I can understand that if you prefer them to stay up it wouldn't be a suitable style for you.
Next time, if you like a thick sock then you could try our "Thick Cotton Socks" - they are full terry but don't have a loose top.
Hope this helps,
Andrea
LAFITTE