Alpinestars Durban Sole Inserts - Size:12 - 25SUDB-10-12

2004-05 Tech 6 sole does not have replaceable inserts
Pre-2004 soles also fit most other brands of MX boots with stitched soles
Pre-2004 inserts maintain the original (hard) compound
Soles and inserts are sold in pairs
Soles and inserts are available for the Tech 6 and Tech 8 boots where noted