I found a latex paint remover called "Goof Off", currently on clearance at
Target for $1.00 (4.5 oz). It works well without damaging the boot. You have
to use a nylon bristtle brush to get into the seems. After removing the paint
there will be a slimey residue which can be removed with dishwashing liquid.
Another idea is to paint the boots brown and use them for WWII Airborne
soldiers.
Hope this helps,
Steve E
I found that by painting the boots with a coat of Floquil Engine Black
(from the railroading days) you can cover that repulsive green nicely.
The finished product will match almost perfectly. The only drawback is
they'll take over a week to dry!
John