Blisters are caused by abrasion against the skin. Lubricating the skin can keep that abrasion from causing blisters. The lubricant you use should be one that will last for the length of your walk. Apply any lubricant liberally to your feet in any area that is prone to blistering.
1. Vaseline Petroleum Jelly
It's cheap and it works. I put great gobs of petroleum jelly on my feet before I put on my Cool-Max socks. No blisters, not even on a marathon - and I used to get big heel blisters every time at 10 miles. No, my feet don't slide around in my shoes - the socks prevent that. No, it doesn't feel slimy once you put on your socks. It doesn't wash out well but who cares - these are walking socks! Use the plain petroleum jelly, not any of the fancy cream versions.
2. BodyGlide
A no-petroleum stick that goes on like a deodorant stick. It won't stain your clothing. It comes in regular and a version that includes sunscreen. Good for preventing blisters on your feet. I use this by itself for 6-10 miles walks and put it on first, before the petroleum jelly, for longer distances.
3. SportShield and BlisterShield
2Toms produces two kinds of silicone-based blister prevention lubricants. One is a SportShield, a silicone-based roll-on or towelette that provides long lasting lubrication to prevent blisters and chafing. It is odorless, non-greasy. The second variety is BlisterShield powdered silicone to put into your socks to help prevent blisters.





