I have searched but I can't see any posts about this specific topic. I want a pair of insoles for my issue boots (already broken in without any, unfortunately). Insoles from trainers and other boots are generally too thick, leaving my feet uncomfortably squeezed. Can anyone tell me what the differences between Sorbothane Double Strike, Single Strike and Full Strike? Double Strike is too thick. Are the other two thinner? Anyone else who uses relatively thin insoles for issue boots? Cheers for any help.