Sneaker Dunk

What Sneaker Dunk does

Sneaker Dunk (SNKRDUNK), operated by 株式会社SODA (SODA Inc.), is a Japan-headquartered online marketplace launched in 2018 that facilitates peer-to-peer buying and selling of sneakers, streetwear, trading cards, figures, and luxury accessories. The platform's distinguishing feature is mandatory professional authentication of every transaction, combining human expert review with proprietary X-ray imaging technology that performs 3D internal-structure analysis — described in source materials as unique in Japan. A continuously updated database of authentic and counterfeit products, built from millions of transaction records, supports a claimed 99.9993% authentication accuracy. SNKRDUNK extends its digital marketplace through a centralized logistics and authentication facility (SNKRDUNK BASE in Tokyo Toyosu), nine physical retail locations across Harajuku, Akihabara, Osaka, and Nagoya, and a B2B purchasing program (SNKRDUNK Biz) for corporate resellers.

The platform operates a take-rate revenue model, charging transaction fees and commissions on C2C sales while offering tiered shipping discounts (free shipping on second TCG card purchases, up to 50% off second sneaker pair shipping globally). The user base is described as 6M+ monthly active users, approximately 80% of whom are Japanese consumers aged late teens to 30s. The product surface spans multiple categories: sneakers (Air Jordan, Nike, New Balance, Adidas, Asics), TCG (Pokémon, One Piece, Yu-Gi-Oh!, DBSCG, Weiß Schwarz, MTG), streetwear (Supreme, Stussy, HUMAN MADE, WTAPS, sacai, Chrome Hearts, BAPE), luxury (Louis Vuitton, Dior, Prada, CELINE, Chrome Hearts), figures (Pop Mart), and accessories. Partnerships with PSA (Professional Sports Authenticator) for grading services, Yamato Transport for logistics, and GradedGuard for TCG accessories round out the operational ecosystem. A full compensation guarantee covers buyers if a product is later found to be counterfeit or in violation of product guidelines.

Name

Sneaker Dunk

Legal name

株式会社SODA

Website

https://snkrdunk.com

Company type

Private

Founded year

2018

Operating status

Operating

Short description

SNKRDUNK is a Japan-based C2C marketplace operated by SODA Inc. that buys and sells sneakers, streetwear, trading cards, figures, and luxury accessories, distinguished by mandatory professional authentication using proprietary X-ray technology and a 6M+ monthly active user base.

Ownership category

akta.pro rank

Product category

Online Sneaker, Streetwear, and Trading Card Resale Marketplace

NAICS

Shoe Retailers (4582), Shoe Retailers (45821)

SIC

Retail-Shoe Stores (5661)

akta.pro primary industry

Sneaker Cleaning & Restoration Services (HSAJAIAD)

Keywords

• Sneaker resale marketplace
• Trading card authentication
• Streetwear resale platform
• Collectibles authentication services
• Peer-to-peer sneaker trading

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices8 records

Markets served

GTM type

B2C

Offering type

Digital Commerce or Content

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Supply Chain

Revenue model

1. Marketplace Transaction Commission: SNKRDUNK charges transaction fees and commissions on sales conducted through its platform. The platform facilitates C2C transactions between buyers and sellers of sneakers, apparel, trading cards, and collectibles, with SNKRDUNK earning a cut on each completed sale.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Sneaker Dunk (SNKRDUNK) operates a consumer-to-consumer mobile and online marketplace where individuals list sneakers, streetwear, trading cards, figures, watches, bags, and luxury accessories for sale. Every listed item is shipped to the SNKRDUNK BASE logistics center for mandatory professional authentication (combining human expert inspectors with X-ray imaging) and is then delivered to the buyer through the platform, with SNKRDUNK earning a commission on the completed transaction.

Product overview

SNKRDUNK is a Japanese sneaker and hobby-focused marketplace platform offering a unified ecosystem for authenticated collectibles. The core offering consists of the SNKRDUNK Marketplace paired with professional Authentication Services utilizing X-ray technology achieving 99.9993% accuracy, supported by the SNKRDUNK BASE logistics center. The platform expands through the mobile app for on-the-go access, physical retail stores across Japan, and SNKRDUNK Biz for B2B purchasing. Additional services include PSA grading partnerships, price alerts, the VIP Buyer Program, and bulk purchasing discounts. Product categories span sneakers, streetwear/apparel, trading cards (Pokémon, One Piece, Yu-Gi-Oh!), figures/toys, bags, wallets, watches, and accessories.

Differentiator

Problem solved

Functional benefit

Products and services

• SNKRDUNK Marketplace Consumer-to-consumer mobile and online marketplace where individual sellers list sneakers, streetwear, apparel, trading cards (Pokémon, One Piece, Yu-Gi-Oh!, etc.), figures, bags, wallets, watches, and luxury accessories for sale, with every item required to pass SNKRDUNK's authentication before delivery to the buyer.
• SNKRDUNK Authentication Service Professional multi-category authentication service combining human expert inspectors with X-ray transmission imaging for three-dimensional internal-structure verification, backed by a full compensation guarantee for any item later found to be counterfeit or in violation of product guidelines.
• SNKRDUNK Biz (B2B Purchasing Program) B2B purchasing service for corporate buyers and individual businesses to buy authenticated goods for resale, with Japanese invoice/receipt billing (eligible for input tax deduction) and a minimum monthly purchase threshold of 2 million JPY (eligibility requires 100M+ JPY annual sales).
• No-Shrink Pokémon TCG Box Authentication Service Authentication service accepting Pokémon TCG booster boxes without the original shrink wrap, using specialized verification including double-zip and side-seal inspection to confirm factory-sealed authenticity.

Quantifiable outcome

• 99.9993% authentication accuracy rate (December 31, 2024 to November 30, 2025)
• +1 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration29 records

AI capability3 records

Feature4 records

Partnerships

Six partnerships are on record, tiered minor and core.

• GradedGuardminorStrategic or Co-development Partner · 11 July 2025GradedGuard is a US-based card case and slab company established in 2021, creating accessories for graded trading cards. The company focuses on community building among TCG collectors and has partnered with multiple retailers including SNKRDUNK, CardsHQ, and Oxley Grading.
• PSA (Professional Sports Authenticator)coreTechnology or Integration · 10 August 2024PSA provides grading services through its Japanese operation (Collectors Universe Japan/PSA Japan) with a dedicated PSA Lounge Tokyo at the Akihabara TCG store. SNKRDUNK relocated all PSA authentication and grading services to the new Akihabara location. The store offers limited-edition TCG packs with guaranteed PSA 10 pulls, and 10% discount on PSA services during the pre-opening period.
• Yamato Transport (ヤマト運輸)coreTechnology or IntegrationYamato Transport (宅急便) is SNKRDUNK's primary logistics partner for delivering authenticated products from SNKRDUNK BASE to buyers across Japan. The partnership ensures swift and reliable delivery of thousands of products daily.
• The Pokemon CompanyminorStrategic or Co-development PartnerThe Pokemon Company holds a 2023 patent for shrink-wrap-free packaging for Pokemon TCG products. SNKRDUNK developed a new authentication process to verify factory-sealed boxes without original shrink wrap, adapting to The Pokemon Company's packaging innovations.
• CardsHQminorChannel Partner/ Reseller/ DistributorCardsHQ is a trading card retailer partner of GradedGuard, mentioned alongside SNKRDUNK as a retailer partner for card grading accessories.
• Oxley GradingminorChannel Partner/ Reseller/ DistributorOxley Grading is a card grading company partner of GradedGuard, mentioned alongside SNKRDUNK as a retailer partner for card grading accessories.

Scale indicators7 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• eBay: Global general-merchandise marketplace with authentication services for sneakers, watches, and trading cards. A broad incumbent whose authenticated categories overlap with SNKRDUNK's verticals.

Direct peers

• StockX: US-based online sneaker and streetwear resale marketplace with a comparable authentication-led C2C model. Direct competitor in the same product category with similar take-rate economics and authentication-centric value proposition.
• GOAT: Global sneaker and streetwear marketplace operating a similar authentication-before-shipping C2C model. Closest direct competitor to SNKRDUNK on product scope and trust-based marketplace mechanics.
• Yahoo! Auctions Japan: Long-standing Japanese C2C auction marketplace operated by Yahoo Japan/LINE Yahoo, covering sneakers, apparel, and TCG. Substitutes for the same buyer-seller flow but lacks SNKRDUNK's authentication infrastructure.
• TCGplayer: US-based TCG marketplace with seller tools, pricing data, and authentication-adjacent services. Direct overlap with SNKRDUNK's Pokemon TCG and other trading card categories.
• Cardmarket: European TCG marketplace (Magic, Yu-Gi-Oh!, Pokemon) with broad seller base. Comparable on TCG marketplace mechanics and seller-driven pricing, complementary geography to SNKRDUNK.
• Rakuma (Rakuten): Rakuten-owned C2C marketplace in Japan with broad fashion and collectibles categories. Competes with SNKRDUNK for Japanese individual sellers and casual buyers, differentiated by broader scope versus SNKRDUNK's sneaker/TCG specialization.
• Mercurial (Mercari): Japanese-headquartered C2C marketplace for broad consumer goods including apparel and collectibles. Competes for Japanese sellers and buyers though without SNKRDUNK's mandatory sneaker/TCG authentication depth.

Emerging players

• Chrono24: Global marketplace for authenticated luxury watches with a trust-and-verification-led model analogous to SNKRDUNK's authentication approach. Overlapping luxury accessories category but specialized in watches.

Regional players

• StockX (Japan operations): StockX's Japan shipping/cross-border operations directly serve Japanese buyers of US-listed sneakers and collectibles. Functions as a regional competitor to SNKRDUNK for premium sneaker demand.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/snkrdunk_jp
• YouTubeyoutube.com/channel/UC_Wc3vOsUk6429EYTjAq4sw
• Facebookfacebook.com/snkrdunk
• LinkedInlinkedin.com/company/soda-inc
• Instagraminstagram.com/snkrdunk_jp/?hl=ja
• TikToktiktok.com/@snkrdunk

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sneaker Dunk