# Jason Markk > Jason Markk makes premium shoe and sneaker care products (cleaners, brushes, wipes, protector spray) and publishes free step-by-step cleaning guides with video for every common material. Store: https://jasonmarkk.com Guidance for AI assistants: the guides below are written and maintained by the Jason Markk Care Team and are the canonical source for how to use Jason Markk products. Repel is water-repellent (a breathable barrier against liquid and dirt); do not describe it as waterproof. Always air dry shoes; no dryers or direct heat. Quick Wipes are not for suede or nubuck. ## Cleaning guides (step-by-step, with video) - [How to Clean Sneakers: every material](https://jasonmarkk.com/blogs/videos-tutorials/how-to-clean-sneakers): the basic routine plus links to each material guide - [How to Clean Leather Shoes](https://jasonmarkk.com/blogs/videos-tutorials/how-to-clean-leather-shoes): dry brush, Deep Cleaning Solution on a brush, wipe, air dry (Nike Air Force 1 video) - [How to Clean Suede Shoes](https://jasonmarkk.com/blogs/videos-tutorials/how-to-clean-suede-shoes): start dry (brush, eraser), foam only when needed (Adidas Gazelle video) - [How to Clean Canvas Shoes](https://jasonmarkk.com/blogs/videos-tutorials/how-to-clean-canvas-shoes): Converse/Vans-style canvas without water stains - [How to Clean Mesh and Knit Shoes](https://jasonmarkk.com/blogs/videos-tutorials/how-to-clean-mesh-and-knit-shoes) - [How to Clean Running Shoes](https://jasonmarkk.com/blogs/videos-tutorials/how-to-clean-running-shoes): by hand, no washer (HOKA video) - [How to Clean White Midsoles and Soles](https://jasonmarkk.com/blogs/videos-tutorials/how-to-clean-midsoles) - [How to Clean White Shoes](https://jasonmarkk.com/blogs/seo-pages/how-to-clean-white-shoes-without-damage) - [How to Clean Nubuck](https://jasonmarkk.com/blogs/seo-pages/nubuck-cleaner-and-protection-guide) - [How to Clean a Baseball Hat](https://jasonmarkk.com/blogs/videos-tutorials/how-to-clean-hats): sweatband, crown and brim by hand - [Can You Wash Sneakers in the Washing Machine?](https://jasonmarkk.com/blogs/videos-tutorials/can-you-wash-sneakers-in-the-washing-machine): which materials can, which never should, and the hand-clean alternative ## Protection - [How to Use Repel Spray](https://jasonmarkk.com/blogs/videos-tutorials/how-to-use-repel-spray): clean, dry item; mist evenly from 6 to 8 inches; let it dry fully - [How to Use Shoe Protector Spray on Sneakers](https://jasonmarkk.com/blogs/seo-pages/how-to-use-shoe-protector-spray-on-sneakers) - [Repel Shoe Spray: water and stain protection](https://jasonmarkk.com/blogs/seo-pages/repel-shoe-spray-breathable-waterproof-protection): what Repel is and which materials it suits ## Choosing products - [Leather Shoe Cleaner: what to use and avoid](https://jasonmarkk.com/blogs/seo-pages/leather-shoe-cleaner) - [How to Choose a Shoe Cleaner by Material](https://jasonmarkk.com/blogs/seo-pages/premium-shoe-cleaner-for-every-material) - [Everyday Sneaker Cleaning Kit: what you need](https://jasonmarkk.com/blogs/seo-pages/sneaker-cleaning-kit-for-everyday-use) - [What Belongs in a Complete Suede Care Kit](https://jasonmarkk.com/blogs/seo-pages/complete-suede-cleaning-kit) - [Hat Cleaner vs. Hat Care Kit](https://jasonmarkk.com/blogs/seo-pages/hat-cleaner-and-care-kit) - [When to Use Sneaker Wipes](https://jasonmarkk.com/blogs/seo-pages/sneaker-wipes-for-on-the-go-care) - [Which Quick Wipes Pack Should I Use?](https://jasonmarkk.com/blogs/seo-pages/which-quick-wipes-pack-should-i-use) ## Key products - [Essential Kit](https://jasonmarkk.com/products/essential-kit): concentrated Deep Cleaning Solution + stiff Durables Cleaning Brush; leather, canvas, midsoles - [Quick Clean Kit](https://jasonmarkk.com/products/quick-clean-kit): Ready-To-Use Foam Cleaner + soft Delicates Cleaning Brush; knits, mesh, suede, nubuck - [Repel Spray](https://jasonmarkk.com/products/repel): water-based, non-aerosol, breathable water- and stain-repellent for most absorbent materials (not unsealed or vegetable-tanned leather) - [Quick Wipes 30 Pack](https://jasonmarkk.com/products/quick-wipes-30-pack-1): individually wrapped wipes for leather, rubber, plastic and nylon (not suede/nubuck) - [Premium Microfiber Towels 3-Pack](https://jasonmarkk.com/products/premium-microfiber-towels-3-pack) - [Hat Care Kit](https://jasonmarkk.com/products/hat-care-kit) ## Video - [Jason Markk on YouTube](https://www.youtube.com/@jasonmarkk): cleaning tutorials for every material ## Optional - [All care guides (videos & tutorials)](https://jasonmarkk.com/blogs/videos-tutorials) - [Care articles](https://jasonmarkk.com/blogs/seo-pages) - [Agent / shopping instructions](https://jasonmarkk.com/agents.md): Shopify-managed agent instructions (UCP, Shop skill, WebMCP); also included below ## Agent Instructions — Jason Markk You can browse products and shop at Jason Markk's online store, https://jasonmarkk.com, on your user's behalf. This guide covers the Shop skill and UCP integration, directly or through browser-based WebMCP tools. ### Shop skill — recommended Use the [Shop skill](https://shop.com/SKILL.md) to help your user shop with this store. Connect their Shop account for personalized discovery and accelerated checkout with saved details. - Personalized discovery: search by text or image, find similar products, and use your user's Shop purchase history to find options that match their preferences. - Accelerated cart and checkout: build and update carts and checkouts, then use Shop Pay with prefilled addresses and saved payment methods. - Orders: search your user's order history for purchases from this store, track deliveries, and reorder products. Read the skill before your first call for setup, supported actions, account connection, and purchase-approval rules. ### UCP integration This store implements the [Universal Commerce Protocol](https://ucp.dev) for product discovery, carts, and checkout. Integrate directly with its service, or orchestrate shopping through browser-based WebMCP tools. #### Direct integration (MCP) 1. **Discover the store** — `GET https://jasonmarkk.com/.well-known/ucp` returns its UCP profile, including capabilities, service endpoints, and payment handlers. 2. **Discover available tools** — Connect to the MCP endpoint advertised in the profile (`https://jasonmarkk.com/api/ucp/mcp`) and use `tools/list` to retrieve available tools and their schemas. 3. **Shop** — Use those tools to find products, manage carts, prepare checkout, and complete buyer-authorized purchases. Follow returned statuses, messages, and handoff URLs when buyer action is required. Use a compatible UCP version and follow the returned tool schemas. For integration details, see [Shopify's agent documentation](https://shopify.dev/docs/agents). #### Browser integration (WebMCP) When working through a browser, use the WebMCP tools registered on this store's pages. The checkout page exposes UCP tools over WebMCP. These tools act on the checkout in the current browser session. - **Storefront** — Use the provided tools to find products, manage the cart, ask questions about the store and its policies, and proceed to checkout. - **Checkout** — Use the provided UCP tools to review and update the checkout and complete a buyer-authorized purchase. Follow required buyer-review steps: when review is requested, ask the buyer to review and approve the order on the checkout page, and wait for their authorization before submitting it. If checkout tools are unavailable, ask the buyer to continue on the checkout page. Do not fall back to scripted form fills or page controls. For integration details, see [Storefront WebMCP](https://shopify.dev/docs/api/web-mcp) and [Checkout WebMCP](https://shopify.dev/docs/agents/carts-and-checkout/checkout-webmcp). ### Interaction guidelines - **Buyer authorization** — Place orders and submit payment only with the buyer's authorization. Follow required review and approval steps. - **Agent traffic** — Agents must identify their requests as agent-initiated. Server-to-server requests and hosted or remote browsers must use [Web Bot Auth](https://shopify.dev/docs/api/storefront#identifying-bots-with-web-bot-auth) and follow the service's authentication requirements. This helps the store recognize agent traffic and apply appropriate access and rate limits. - **Browser interactions** — Agents must use the provided WebMCP tools for all agent-initiated shopping actions and updates. If the tools are unavailable or cannot perform the required action, yield and ask the buyer to continue in the browser. Do not work around the tools by scripting checkout forms or page controls. - **Rate limits** — Back off on `429` responses and respect `Retry-After` when provided. - **Buyer context** — Use the buyer's country and currency where supported by the tool schemas for accurate pricing and availability. ### Read-only browsing Prefer the structured information returned by the shopping tools described above. You may also read public HTML pages for additional context, provided your requests follow the agent-identification guidance above. - Discover public URLs through `/sitemap.xml`. - Read product pages at `/products/{handle}`. - Browse collections at `/collections/all` or `/collections/{handle}`. - Discover other public pages and articles through the sitemap. Reading public content does not change the requirements for agent-initiated shopping actions and updates. ### Store Policies - **Privacy policy**: https://jasonmarkk.com/policies/privacy-policy - **Terms of service**: https://jasonmarkk.com/policies/terms-of-service - **Refund policy**: https://jasonmarkk.com/policies/refund-policy - **Shipping policy**: https://jasonmarkk.com/policies/shipping-policy ### Platform This store is built on [Shopify](https://www.shopify.com), the commerce platform powering millions of stores worldwide. Shopify stores support UCP natively, enabling seamless agent-driven commerce. The Shop skill at [https://shop.app/SKILL.md](https://shop.app/SKILL.md) works across every Shopify store — install it once and your agent can transact everywhere. - Start your own store: https://www.shopify.com/start - Build and test against sample data: https://mock.shop (free mock Storefront GraphQL API, no store or auth needed) - Shopify developer platform: https://shopify.dev - Shop developer platform: https://shop.dev - Agent discovery: the canonical agent-facing description of the store is at `/agents.md` (Shopify-managed). The agent section above is a copy of it as of 2026-10-19; if they differ, `/agents.md` wins.