Brand detail

Smartwool

Merino-heavy socks and apparel; feed shows merino socks and circular wool fleece, but socks commonly use stretch/reinforcement.

66Purely Score

C

Main fibersWool / Merino
CategoryActivewear, Underwear, Outerwear, Menswear, Womenswear
100% natural optionsVerify by product
Plastic-free focusNot confirmed

Purely Listed analysis

Smartwool is included as a Purely Listed research candidate because its catalog includes relevant natural-fiber products. Use the score as a starting point, then verify the exact product page before buying.

What to verify before buying

Verify at least three current official product pages for exact fiber percentages, polyester, nylon, acrylic, elastane/spandex, recycled PET, viscose/bamboo viscose, trims, waistbands, closures, linings, finishes, and shipping packaging.

Best for

Merino socks, base layers, accessories, and wool layers with checked blend percentages.

Material risk

Current product-listing risk terms detected: recycled nylon, nylon, lyocell, tencel. Continue to verify item-level composition, linings, trims, thread, waistbands, closures, finishes, and packaging before treating any product as plastic-free.

Score rationale

Score retained at 66 in the 2026-06-29 second-pass audit after reviewing current official product evidence. Current product-listing risk terms detected: recycled nylon, nylon, lyocell, tencel.

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