7s band lenght

Since I have small wrists the 7S looks better on my wrist compared to the regular 7, which is too big.

However,when I tried the 7S in the shop and found the band lenght too short. Currently I have the Instint 1 and I like that band lenght.

When I looked online for 20 mm bands, I can not find the band lenghts of those replacements.

Does anybody know where to find longer (silicone) 20 mm bands?