Darn Tough
Produces durable and comfortable merino wool socks with a lifetime warranty.
Why Darn Tough Is BIFL-Worthy
Produces durable and comfortable merino wool socks with a lifetime warranty. We evaluate Darn Tough products for long-term serviceability, build quality, and consistency across model lines.
Signals We Look For
- Materials and construction that hold up to heavy daily use.
- Repairability or availability of replacement parts.
- Consistent performance and quality across years.
Potential Pitfalls
- Model revisions that remove durability features.
- Proprietary parts with limited availability.
- Overly complex designs with no service path.
