sukui's hemp scrubs come with a QR carbon ledger — more absorbed than emitted

sukui, a sustainable medical-wear brand from Iizuka City, Fukuoka, makes hospital scrubs whose labels carry more than care instructions: a QR code opens a digital product passport (DPP) listing the CO2 emitted in making that garment and the CO2 absorbed by the hemp while it grew. A 100% hemp scrub top, for example, logs 6.15kg of emissions against 12.49kg absorbed — the material sequesters more carbon than its production releases.

The brand comes from Working Hasegawa Co., a workwear maker founded in Fukuoka in 1978. The integrity of the numbers rests on Chaintope, a blockchain company also based in Iizuka, whose technology makes the records extremely hard to alter after the fact. The project drew on subsidies from Fukuoka Prefecture and Iizuka City through industry-academia-government collaboration — a pairing of two small-city firms rather than a Tokyo or Silicon Valley programme.

The transparency was the point: in an era when 'we're eco' claims invite greenwashing suspicions, sukui shows the evidence per unit, ahead of the EU's phased DPP requirement for clothing expected from 2027. The approach won the Good Design Award 2025 in Japan, then Germany's iF DESIGN AWARD 2026 and Green Product Award 2026 — an international triple crown president Shinichi Hasegawa said would spur the brand to seek global recognition.

Greenwashing has made unverified eco-claims worthless; per-garment evidence is harder to fake than a brand-level certificate.

Hemp gives the ledger a positive story to record: the crop absorbs more CO2 than the garment's production emits.

Blockchain anchoring closes the credibility loop — the numbers survive audits because they cannot be quietly rewritten.

The EU will require digital product passports on clothing from 2027, so early compliance doubles as product differentiation.

Two Iizuka firms — a workwear maker and a blockchain company — could pair locally under prefecture and city subsidies.

Sustainability claims become credible when they ship as evidence: per-unit data, anchored where it cannot be edited, beats any certificate or slogan.

By October 2026 sukui had taken the Good Design Award 2025 (Japan), the iF DESIGN AWARD 2026 and the Green Product Award 2026 (Germany) — three international recognitions credited to the DPP mechanism as much as the design. President Shinichi Hasegawa said the domestic award encouraged the firm to pursue global recognition, which the two German prizes then delivered.