These are apparently rare, and at a very good price.
According to the guy who went to the trouble of importing them:
"TODAY is the last day that you can order Group 99 Packs in North America.
These are hands down the best military packs ever made.
We are offering them for $100-$300 less than the nearest competitor here in the USA.
Today this offer ends at midnight and will not be back for at least six months.
If you don't act now, this opportunity is gone."