Huggies does make a size 7 diaper.
You can buy Huggies Little Movers size 7 diapers.
Although most Huggies diapers come in a size up to a size 6 but Huggies Little Movers diapers are in a size 7 as well.
The Huggies Little Movers size 7 are a little more expensive than size 6.
You can also buy other brands of size 7 diapers which include.
Gentle Steps size 7.
Cuties size 7.
Pampers Cruisers size 7.
Luvs size 7 diapers.
Kidgets size 7 diapers.
And there are also a list of other brands of size 7 diapers that you can buy online as well.
Even now you can buy a size 8 cuties brand called boundless size 8 diapers for older children up to 58 lbs in weight.