Men's Flat Collar Business Suit Set – EX-STOCK Canada | Wedding, Banquet & Formal Wear in S–6XL

Find the perfect men's business suit set for weddings and formal events in Canada and the USA. This elegant flat collar suit from EX-STOCK Canada is designed for the modern man who needs a polished, all-season look — whether you're attending a banquet, walking down the aisle, or commanding the boardroom. Available in Black, Blue, and Dark Blue, with an extended size range from S to 6XL, this suit is built for every body type.

Key Features

• Fabric: Cotton-blended with acetate fiber lining for a smooth, structured drape
• Collar: Flat collar (notch lapel) for a clean, timeless formal silhouette
• Placket: Single row, one-button closure — sleek and contemporary
• Back Vent: Center back slit for ease of movement
• Season: Four-season wear — suitable year-round
• Occasion: Wedding, banquet, business formal, groom wear, events
• Colors Available: Black, Blue, Dark Blue
• Sizes: S, M, L, XL, 2XL, 3XL, 4XL, 5XL, 6XL (Asian sizing — see size guide below)
• Gender: Men's
• Packing List: Suit set x1

Size Guide

Important Note: This suit follows Asian sizing standards and runs 1–2 sizes smaller than standard North American sizing. We strongly recommend sizing up one to two sizes from your usual Western size. Please measure yourself carefully and refer to the chart below before ordering.

If your measurements fall between two sizes, always choose the larger size. For personalized sizing help, contact our customer service team before placing your order.

Who This Is For

• Grooms and wedding party members seeking a sharp, coordinated formal look
• Business professionals attending conferences, client meetings, or corporate events
• Men in Canada and the USA who need extended sizing (up to 6XL) in a formal suit
• Anyone attending banquets, galas, graduations, or formal ceremonies
• Shoppers looking for a versatile, four-season suit that works year-round

Why Shop at EX-STOCK Canada

• Verified Suppliers: Every product is sourced from trusted, quality-checked suppliers
• Reliable Delivery: Fast shipping to Canada and the USA with real-time tracking
• Transparent Service: Clear product details, honest sizing guidance, and responsive support
• 90-Day Return Policy: Shop with confidence — returns accepted within 90 days of purchase
• Secure Checkout: Your payment and personal data are always protected

Explore more styles in our Men's Business Collection, browse our full Men's Collection, or check out related formal styles like the Men's Slim Fit 2-Piece Professional Business Suit, the Men's 3-Piece Wedding Suit Set, and the Men's 3-Piece Business Casual Wedding Suit. For more men's fashion, visit our Men Clothes Collection.

The existing product images below show the full suit from multiple angles and in all available colors. Please review them carefully alongside the size chart before placing your order.

Frequently Asked Questions

Does this suit ship to Canada?
Yes! EX-STOCK Canada ships this men's business suit set to all Canadian provinces and territories, as well as across the USA. Orders are processed promptly with tracking provided from dispatch to delivery.

What material is this suit made from?
The suit is crafted from a cotton-blended fabric with an acetate fiber lining, providing a smooth, structured drape that holds its shape throughout the day — ideal for long events like weddings and banquets.

How do I choose the right size?
This suit uses Asian sizing, which runs 1–2 sizes smaller than North American sizing. Always size up one to two sizes and use the size chart above. If you are between sizes, choose the larger one. Contact our team if you need help selecting your size.

Is this suit suitable for a wedding?
Absolutely. The flat collar, single-button placket, and center back slit give this suit a refined, elegant look that is ideal for weddings, groom wear, banquets, and formal ceremonies. It is available in classic Black, Blue, and Dark Blue to suit any wedding color palette.

What is EX-STOCK Canada's return policy?
We offer a 90-day return policy on eligible items. If you are not satisfied with your purchase, contact our support team within 90 days of receiving your order to initiate a return or exchange. Items must be unworn and in original condition with all tags attached.