Check these out: https://www.amazon.com/dp/B00NNQAWK6/ref=cm_sw_r_cp_apa_glc_fabc_1KREGADGJJAC4RHKRZMD?_encoding=UTF8&psc=1 Condition every month with a few layers of this: https://www.amazon.com/dp/B0002SQYV4/ref=cm_sw_r_cp_apa_glc_fabc_DQ33XQ1VGEEXJFK22PND
When putting on sole, don't put on floor contact points on the lugs of the boot.
If your feet get hot in the boots, you can also fold down the shaft partially to allow some breathability.
Hope this helps!