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Why This Article ExistsArticles 1 and 2 of this series made the case for postpartum as its own engineering category, and walked through C-section construction specifically. Both articles were product-focused — what to build and why.This article is the operational companion. If you're a brand owner w

Why This Article ExistsRoughly twice a month, a brand owner sends me a message that goes something like this:"We're launching a postpartum underwear line. Our hero SKU is essentially your period underwear in a higher-waist cut. Same fabric, same gusset construction, same absorbency. Can you produce

Why This Article ExistsIn Article 1, I argued that postpartum is structurally a different product category from period — three different fluids, different absorbency curves, different chemistry standards, different fit dynamics. The C-section variant is the most engineering-intensive sub-category wi

Table of ContentsToggleWhy This Article ExistsThe Three Tiers, DefinedTier 1: CommodityTier 2: Premium CleanTier 3: Defensible Clean (The Standard This Series Has Been Describing)The Cost Premium, Component by ComponentWhat These Numbers Mean at RetailWhere the Money Actually Goes (And Where It Does

Why This Article ExistsFive weeks of this series have walked through what's in a period panty — PFAS testing, OEKO-TEX scope, hidden finish chemistry, GOTS organic content, synthetic material specifications. The question this week is different.It's not "what's in it." It's "how is it put together, a

Why This Article ExistsIn Week 4 we walked through GOTS — Scope Certificates, Transaction Certificates, the paperwork chain. We also said something that I want to come back to:"For a typical mainstream period panty, the calculated organic content is 70–85%. The remaining 15–30% is synthetic, and GOT

The Question That Started This ArticleA few months ago, a brand owner sent me a message that I've now received some version of dozens of times:"Our factory has GOTS certification. We're marketing our period underwear as GOTS organic cotton on Amazon. Customs just held a shipment because the buyer's

Why This Article ExistsIn Week 1 we talked about PFAS. In Week 2 we walked through how to read an OEKO-TEX certificate without getting fooled. Both of those topics have something in common: the consumer-facing conversation has at least started. People search for "PFAS-free period underwear." Retaile