This extra volume swim cap from Speedo is designed for people with long hair and gives superb comfort and fit. 100% Silicone.
Good one for long and thick hair
Although this is a cap specifically for people with long hair it is still a bit too small for me. However, it is bigger than a normal cap and seems to be the best option out there.
Slightly thinner than my previous long hair hats but if anything better.
Really good and comfy fit
I bought this hat on a recommendations as I have lots of hair and a big head! It is lovely quality and stayed in place perfectly once on, but it is not overly big for me and I found it rather tight. After half an hour of swimming, I had a headache coming on which I suspect may be from the hat. I will try again but I fear I will need to keep looking for an even more roomy hat!