6 ways to prevent foot blisters when trekking
1. Break in your boots properly before the trek
2. Keep your feet dry
Always have spare socks to hand
Never put on damp socks
3. Wear two pairs of socks
Make the second pair sock liners
Sock liners are thin socks (usually made from silk, polyester, wool or a hybrid fabric) that are super form-fitting.
Test out your socks beforehand!
More sock info
4. Protect your pressure and hot spots
5. Try a foot spray
6. Adjust your bootlaces for long uphills and downhills
How to manage a suspected or developing blister
How to pop and dress a foot blister