Jinjiang Hanfeng Trade Co., Ltd. (founded 2010, Jinjiang, Fujian) is a specialized combat and athletic footwear manufacturer operating under brand SDTDID ("DISEÑADO PARA EL COMBATE • ESTABILIDAD EXPLOSIVA"). Operating 2 specialized combat lasting lines in the Chendai Footwear Hub producing over 350,000+ pairs annually (100–1,500 pairs/day), Hanfeng offers agile OEM/ODM manufacturing from 300 pairs low MOQ with a mandatory 100% Chairman final quality audit and verified Amazon US FBA sales performance.
Born in the Heart of Global Athletic Shoemaking
Headquartered in Chendai Town, Jinjiang City, Fujian Province—the renowned "Footwear Capital of China" responsible for over 40% of global athletic shoes—Jinjiang Hanfeng Trade Co., Ltd. was established in 2010. While thousands of local workshops focused on commoditized running shoes, Hanfeng made a strategic decision to master the most unforgiving category in footwear: Combat and High-Impact Athletic Footwear.
Wrestling, boxing, and strength training require instantaneous torque, multi-directional friction, zero mat-slip, and unbreakable sole adhesion under 600kg+ lateral dynamic loads. Over 16 years, we engineered our dedicated lasts (US 7 to 15 / EU 38 to 47), developed proprietary Shore A 60±3 gum rubber formulations, and perfected our 0.65MPa high-pressure sole cementing protocol.
Our proprietary brand SDTDID ("DISEÑADO PARA EL COMBATE • ESTABILIDAD EXPLOSIVA") was conceived to disrupt the market: giving emerging combat brands, martial arts gym chains, and competitive athletes $160-tier performance at an honest $50 retail price point.
The SDTDID 6-Letter Creed
"SDTDID, where SPORT is the core, Do drives action, Technique ensures professionalism, Dedication reflects focus, Integrity upholds commitment, and Dependable guarantees reliability—deeply rooted in boxing, wrestling, climbing, weightlifting, cycling and functional athletic footwear."
Manufacturing Plant & Global Trade Desks
To provide seamless international commerce, our operations are structured through dedicated domestic manufacturing and global export trade entities:
- Jinjiang Hanfeng Trade Co., Ltd. (晋江瀚峰贸易有限公司): Registered manufacturing, mold engineering, lasting workshops, and physical testing laboratories in Jinjiang, Fujian.
- Sunrise Int'l Industry Co., Limited: International export trading arm managing worldwide banking, customs logistics, and B2B communication channels.
Real Shoemakers. Real Machines. Zero Artificial Fluff.
Take a documentary look inside our Jinjiang manufacturing facility where 150+ craftsmen assemble, last, stitch, and inspect professional combat footwear every day.
Live From the Jinjiang Workshop Floor
Watch direct video dispatches from our daily shoe-making operations, lasting lines, and quick-response small-batch dispatch stations.
Why Our Chairman Personally Inspects 100% of Finished Pairs
In traditional contract manufacturing, quality control stops at statistical AQL random sampling (checking 32 pairs out of a 500-pair container). For combat athletes whose ankles and knees depend on millimetric sole alignment, a 1% defect rate is catastrophic.
At Hanfeng / SDTDID, our Chairman established a mandatory 100% Pre-Carton Final Audit Protocol. Positioned right at the final packing conveyor before polybagging and carton sealing, every single left and right shoe is inspected with calipers and steel rules:
- Sole Margin Glue Gap: Must be strictly ≤ 0.5mm with zero adhesive overflow or dry joints.
- Strobel Seam Smoothness: Internal cavity felt by hand to ensure zero irritating knots or friction points.
- Heel Axis Alignment: Laser vertical check ensuring zero inward pronation or outward supination.
- Eyelet Tensile Integrity: 180N mechanical pull verification ensuring zero lace pull-outs under heavy sparring.
Cross-Border FBA Proven Before Your First Bulk Container
Unlike traditional OEM factories that only show 3D mockups or showroom samples, Hanfeng actively validates our combat footwear lines through our official Amazon US Storefront (Store: SD SDTDID, Merchant ID: A3DE7145Q0VGH2).
Our flagship model SD-002 (ASIN: B0FKNH3PTS) has undergone thousands of real-world wrestling matches, powerlifting sessions, and combat sparring bouts across American collegiate and amateur gyms.
Merchant ID: A3DE7145Q0VGH2 | Marketplace ID: ATVPDKIKX0DER | Flagship ASIN: B0FKNH3PTS
View Live Amazon Storefront & Customer Reviews ↗
Ready to Engineer Your Own Combat Footwear Line?
Whether you need 300 pairs of private-label wrestling shoes or 20,000 pairs of custom-tooled soccer cleats, our engineering team is ready to review your tech pack.