How we compare heated gear

The short version: the maker's own spec sheet, read carefully, and nothing we can't link to.

Where the numbers come from

• Specs come from the maker's own product page. Battery voltage and mAh, heat settings, run times, heated zones, materials and care instructions. We cite the page and the date we read it.
• If the maker doesn't publish it, we leave it blank. We don't estimate a run time or guess at a temperature.
• If the maker contradicts itself, we say so. Some product pages list two different run times. We show both rather than picking the nicer one.

How we pick products

• The product has to be sold by the brand (or its official storefront) on the retailer we link to, and in stock when we check.
• We check that the listing we link to is the same model as the specs we quote.
• We rank on the specs that matter for the job. For cold fingers, that's whether the heat reaches the fingertips; for an all-day commute, it's run time on a middle setting.

What we never do

• Claim hands-on testing we didn't do.
• Invent star ratings, reviews or testimonials.
• Use product photos scraped from retailers.
• Show prices that go stale between updates.
• Give medical advice. We link to NIH and similar sources for context, and say plainly when something needs a doctor.

Corrections

If a spec on this site doesn't match the maker's page, email hello@thewarmflash.com with the page and the link. We fix it and update the page's date.