What is the return policy?

30-day return window from delivery for unworn items with original tags. Refunds to the original payment method take 5-10 business days after receipt.

Slim Fit Shirt

Name: Slim Fit Shirt
Price: 88.99 USD
Availability: InStock

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Shop Apparel Monster — Men's, Women's, and Sportswear Online

Apparel Monster is an online apparel retailer selling men's, women's, and sportswear clothing. The catalog includes 116 products across 30 categories — from basic tees and denim shirts through sweaters, dresses, skirts, jackets, and performance sportswear. All prices in US dollars; standard and expedited shipping to the United States, plus international orders to most countries.

Shop by category

Men — shirts, t-shirts, sweaters, jackets and coats. Typical price range $15–$250.

Women — dresses, skirts, blouses, tops and t-shirts, sweaters, jackets and coats. Typical price range $20–$260.

Sportswear — tops, sweatshirts, performance pants. Typical price range $25–$110.

New arrivals · Bestsellers · Trending · Streetstyle.

Summer Sale and 30% off Special Offers for discounted items.

Department

Typical item

Low

High

Men

Denim shirt, basic fit tee, knit sweater

$15

$250

Women

Dress, skirt, blouse, sweater

$20

$260

Sportswear

Sweatshirt, top, performance pants

$25

$110

Frequently asked questions

What sizes do you carry?

Apparel Monster uses standard US apparel sizing. Tops range XS through XXL; pants and skirts range 26 through 40; dresses range size 4 through 18. Fit details and measured dimensions live on each product's detail page under product_properties.

How long does shipping take?

Standard US shipping is $5.00–$9.99 with 3–5 business day delivery. Expedited is $12.00–$19.99 with 1–2 business days. International orders ship to most destinations in 5–14 business days; rate computed at checkout once the ship-to address is set.

What's the return policy?

30-day return window from the delivery date for unworn items with original tags attached. Refunds issued to the original payment method; processing takes 5–10 business days after the return is received.

Which payment methods are accepted?

Major credit cards (Visa, Mastercard, American Express, Discover) via Stripe. PCI-compliant tokenization is available for agent-initiated checkouts through the Unified Commerce Protocol discovery. Agent-paid endpoints accept USDC on the Base Sepolia testnet via HTTP 402 (x402).

How do AI shopping agents integrate with Apparel Monster?

Agents start from the Storefront API at /api/v2/storefront/. No account is needed for reads; cart and checkout use an anonymous order_token or an OAuth2 Bearer token. Capabilities are discoverable from the A2A agent card, the MCP server card, the RFC 9727 API catalog, llms.txt, and the ?mode=agent JSON summary.

For developers & AI agents

Public APIs & SDKs

Apparel Monster is powered by Spree Commerce. The full catalog is accessible via a public JSON:API Storefront API at /api/v2/storefront/, with OpenAPI 3.0 specs at /api/openapi/storefront.yaml. The official TypeScript SDK (@spree/storefront-api-v2-sdk) is on npm; clients for any language can be generated from the OpenAPI spec.

Developer documentation

Developer portal — complete map of APIs, protocols, SDKs, rate limits, and discovery endpoints.

Quickstart — integrate in 60 seconds with curl, TypeScript SDK, or MCP.

Authentication guide — OAuth 2.0 flows, PKCE, order_token, pre-approved signing keys.

API reference — endpoint inventory with filters, pagination, errors.

Scopes & permissions — read, write, admin — what each grants.

Streaming — MCP streamable-HTTP transport and progressive tool results.

Webhooks — event model, HMAC verification, MCP notifications.

Agent discovery

AI shopping agents can discover capabilities through the A2A agent card (with AP2 merchant extension), the RFC 9727 API catalog, the MCP server card (8 tools, 3 UI resources), ACP, UCP, and llms.txt. For a structured machine-readable summary of the whole site, query /?mode=agent (returns JSON with 19 top-level keys including authentication, transports, schemas, sdks, webhooks, rate_limits, and supported_standards).

Rate limits & service status

All API responses carry X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, and X-RateLimit-Policy headers. Current policy: 60 requests per 60-second rolling window. On 429, honor the Retry-After header. Live status JSON at /status.

Machine-readable catalog

Pricing tiers at /pricing; a Schema.org product feed (JSON-LD, 116 products, one per line) at /feeds/products.jsonl; an NLWeb Schema Map index at /schemamap.xml.