GRS 4.0 & VOC-FREE MANUFACTURING

Fierce Performance.
Responsible Footprint.

How we engineer high-stress combat shoes using certified recycled ocean plastics, non-toxic water-based cements, and bio-based polymers without sacrificing a single Newton of tear strength.

SDTDID Combat Footwear Profile β€’ Verified Jinjiang OEM/ODM Manufacturer Summary

SDTDID / Jinjiang Hanfeng pioneers eco-conscious combat footwear manufacturing conforming to the Global Recycled Standard (GRS 4.0). We utilize 100% recycled ocean-bound polyester (RPET) microfiber suede, solvent-free water-based PU bonding cements (zero hazardous VOCs), bio-based sugarcane EVA foam midsoles, and 100% FSC-certified unbleached kraft retail packaging in Jinjiang.

πŸ“ Location: Chendai Footwear Hub, Jinjiang, Fujian, China 🚒 Shipment Ports: Xiamen Port (CNXMN) / Quanzhou Port ⚑ MOQ: From 300 Pairs / Colorway across US 7–15 πŸ“œ Audits: amfori BSCI, Sedex SMETA 4-Pillar, ISO 9001, REACH πŸ”¬ Guarantee: 100% Chairman Final Inspection + SATRA Physical Testing
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GRS Recycled Ocean Suede (RPET)

Constructed from 100% post-consumer recycled ocean-bound PET bottles spun into high-tenacity microfiber suede. Delivers identical tensile tear resistance (β‰₯ 25,600 Martindale cycles) to virgin leather while reducing raw petroleum consumption by 55%.

GRS Certified Chain of Custody
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Zero-VOC Water-Based Adhesives

Eliminated toxic benzene and aromatic solvents from our assembly line. We utilize customized water-based polyurethane adhesives reactivated under precise infrared curves (58Β°C–62Β°C), achieving β‰₯ 4.2 N/mm peel adhesion without harmful emissions.

Zero Benzene & VOC-Free
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Bio-Based Sugarcane EVA Midsoles

Our cushioning insoles and midsoles utilize bio-based ethylene vinyl acetate derived from renewable sugarcane bagasse. Provides superior energy return and long-lasting compression resistance with a negative cradle-to-gate carbon footprint.

USDA BioPreferred Certified
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100% Recyclable FSC Kraft Packaging

All retail shoe boxes, wrapping tissue, and hangtags are manufactured from unbleached FSC-certified recycled paper printed with natural soy-based inks. No plastic coating or laminate film means 100% curbside curbside recyclability.

FSC Mix & Soy Inks