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Darn Tough Micro Crew Socks
Built to last. Material sourcing is the next step.
- GreenSpecs grade
- B+
- Score
- 68/100
- Brand
- Darn Tough
- Category
- Clothing
- Headline claim on pack
- “Guaranteed for Life”
- Assessed
- 15 April 2026
Source: GreenSpecs label assessment of Darn Tough Micro Crew Socks, 15 April 2026, high confidence.
Where this number comes from. GreenSpecs scores the evidence a product puts in front of you: the wording of the claim, what the packaging discloses, and whether an independent certifier stands behind any of it. Each score is a GreenSpecs assessment generated by our scoring model from the product label and public claim text on the date shown. It is not a laboratory test, not a lifecycle assessment, and not a safety rating. The full method is published here.
What does the Darn Tough Micro Crew Socks label actually prove?
Built to last. Material sourcing is the next step. It scores 68 out of 100 — grade B+ — across the five signals below.
| Signal | Score | What it asks |
|---|---|---|
| Claim specificity | 15/20 | Is the claim measurable, or a mood? |
| Transparency | 4/20 | Does the pack disclose enough to check it? |
| Third-party proof | 8/20 | Has an independent certifier verified it? |
| Impact where it counts | 13/20 | Does the claim address this category's real footprint? |
| Marketing honesty | 0/20 | Is the packaging language straight with you? |
What the claim genuinely covers
- Look for mono-material socks for easier end-of-life recycling.
- Brands with GOTS-certified organic cotton offer better material sourcing.
What to look for on this shelf
- Look for mono-material socks for easier end-of-life recycling.
- Brands with GOTS-certified organic cotton offer better material sourcing.
Got the pack in your hand? Scan it yourself — same score, in about five seconds, plus the swap that beats it.
Other clothing we have graded
| Product | Brand | Grade | Score | What the label proves |
|---|---|---|---|---|
| Wrightsock Coolmesh II Double Layer Socks | Wrightsock | B- | 55/100 | Recycled content is a good start. Supply chain details are still developing. |
| Econscious Trucker Cap | Econscious | C+ | 52/100 | A step up from conventional. Still developing on verified impact. |
| Econscious Baseball Cap EC7000 | Econscious | B- | 52/100 | Organic fiber is a good start. Certifications are still missing. |
| Nike Mercurial Superfly 10 Academy Turf High-Top Soccer Shoes | Nike | C | 48/100 | Recycled content is a start. Deeper transparency is still developing. |
| Billabong Twill Garment | Billabong | C+ | 48/100 | A step up on materials. Supply chain transparency is still developing. |
| Altra Lone Peak Trail Running Shoe | Altra | C | 48/100 | A solid performer, with room to grow on materials and transparency. |
| Altra Trail Running Shoe | Altra | C | 46/100 | Conventional materials, decent durability. Transparency is the next step. |
| New Balance 517 Training Shoe | New Balance | C- | 42/100 | Conventional for now — a better one's out there. |