Proofide, if you want to go "factory issue" everything.
SnoSeal, if you have a local shoe/boot store and want to save money.
Obenauf's LP, if you have a local tack & stable and want to have enough to care for saddles from now until the apocalypse.
They're all similar formulation.
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"I feel like my world was classier before I found cyclocross."
- Mandi M.