I have a pair off Keen work boots and love them except for the insoles. Not much padding. These are the step up from the factory insoles. As other reviewers have noted, these K-20 insoles should be standard in every pair of Keen boots. They made my work boots feel like a completely different pair of boots. They are so comfortable now – like walking on pillows made of clouds. This is a blessing for me – I work 12 hour shifts walking on concrete. I highly recommend these if you own a pair of Keen work boots and spend long hours on your feet. They are totally worth every penny.