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The Knit Brief with Functional Fly offers a unique blend of heritage construction and modern comfort. While most knit briefs are closed, this design features a real open fly, a functional detail rarely found in contemporary styles, making it highly appealing to consumers who prefer traditional functionality. The use of binding (piping) on the front and leg openings, combined with a smooth, solid exposed elastic waistband, defines its classic, athletic aesthetic. This 100% cotton brief is built for reliability and comfort as a core inventory offering.
Unique Construction & Material Features
Functional Open Fly: A specialized construction element for knit briefs, providing practical access and a unique selling point that distinguishes it from standard support briefs.
100% Cotton Single Jersey: Utilizes a lightweight, highly breathable 135-140 GSM jersey fabric, ensuring pure comfort and minimizing synthetic contact.
Exposed Solid Nylon Elastic Waistband: The simple, solid black elastic waistband provides clean definition and a reliable hold, allowing for easy custom width and tension specifications.
Binding Finish: The edges of the front pouch (if applicable) and leg-holes are finished with a separate binding (piping) that defines the shape and provides a robust, clean edge, typical of vintage athletic briefs.
Double-Ply Contoured Pouch: Features a supportive two-layer construction, crucial for shape and modesty, especially in 100% cotton with a functional fly.
Strategic OEM Advantages
Distinct Market Position: The combination of the functional fly and binding detail gives your brand a product that stands out in the crowded basic brief market, appealing to niche and heritage consumers.
Durability through Binding: The use of binding reinforces the high-stress areas (leg openings), contributing to the garment's longevity and structural integrity over time.
Clean Exterior Branding: The solid elastic waistband is perfectly suited for low-key branding (jacquard, print, or a woven flag label) while maintaining a clean, classic aesthetic.
Bulk Order Stability: The standardized knit cotton and simple color profile allow for efficient and consistent production across high-volume orders.
Manufacturer FAQs
Q: How is the durability of the binding assured during high-speed production?
A: We utilize specialized binding attachments on our sewing machines that ensure the knit tape is fed, folded, and stitched consistently without puckering or stretching the main fabric, guaranteeing both a clean look and long-term durability.
Q: Can the material be dyed to any color for the body and the exposed elastic?
A: Yes. The 100% cotton jersey can be dyed to any standard Pantone TPG or TPX color code. The nylon elastic can also be custom-dyed and woven in any solid color to match or contrast with the main body fabric.
Click here to send us an inquiry!
Product Details
| Product Name | OEM Sustainable 100% Cotton Design Knit Brief with Functional Fly |
| Material | 100% Cotton |
| Color | Custom Print and Color |
| Product Type | Boxers & Briefs |
| Size | S/M/L/XL or OEM |
| Feature | Anti-Bacterial, Anti-Static, Breathable, Sustainable, Quick Dry |
| Applicable Season | Spring, Summer, Autumn, Winter |
| Design | According to customer's artwork or samples |
| Packing | According to customer's requirment |
| Brand | According to customer's requirment |
| Sample Time | 7-15 days |
| Free Sample | Free sample available with freight collection |
| Production Time | 45-60 days after order confirmed |
| Function | Breathable, Eco-Friendly, Anti-Bacterial |
Product Showcase




The Knit Brief with Functional Fly offers a unique blend of heritage construction and modern comfort. While most knit briefs are closed, this design features a real open fly, a functional detail rarely found in contemporary styles, making it highly appealing to consumers who prefer traditional functionality. The use of binding (piping) on the front and leg openings, combined with a smooth, solid exposed elastic waistband, defines its classic, athletic aesthetic. This 100% cotton brief is built for reliability and comfort as a core inventory offering.
Unique Construction & Material Features
Functional Open Fly: A specialized construction element for knit briefs, providing practical access and a unique selling point that distinguishes it from standard support briefs.
100% Cotton Single Jersey: Utilizes a lightweight, highly breathable 135-140 GSM jersey fabric, ensuring pure comfort and minimizing synthetic contact.
Exposed Solid Nylon Elastic Waistband: The simple, solid black elastic waistband provides clean definition and a reliable hold, allowing for easy custom width and tension specifications.
Binding Finish: The edges of the front pouch (if applicable) and leg-holes are finished with a separate binding (piping) that defines the shape and provides a robust, clean edge, typical of vintage athletic briefs.
Double-Ply Contoured Pouch: Features a supportive two-layer construction, crucial for shape and modesty, especially in 100% cotton with a functional fly.
Strategic OEM Advantages
Distinct Market Position: The combination of the functional fly and binding detail gives your brand a product that stands out in the crowded basic brief market, appealing to niche and heritage consumers.
Durability through Binding: The use of binding reinforces the high-stress areas (leg openings), contributing to the garment's longevity and structural integrity over time.
Clean Exterior Branding: The solid elastic waistband is perfectly suited for low-key branding (jacquard, print, or a woven flag label) while maintaining a clean, classic aesthetic.
Bulk Order Stability: The standardized knit cotton and simple color profile allow for efficient and consistent production across high-volume orders.
Manufacturer FAQs
Q: How is the durability of the binding assured during high-speed production?
A: We utilize specialized binding attachments on our sewing machines that ensure the knit tape is fed, folded, and stitched consistently without puckering or stretching the main fabric, guaranteeing both a clean look and long-term durability.
Q: Can the material be dyed to any color for the body and the exposed elastic?
A: Yes. The 100% cotton jersey can be dyed to any standard Pantone TPG or TPX color code. The nylon elastic can also be custom-dyed and woven in any solid color to match or contrast with the main body fabric.
Click here to send us an inquiry!
Product Details
| Product Name | OEM Sustainable 100% Cotton Design Knit Brief with Functional Fly |
| Material | 100% Cotton |
| Color | Custom Print and Color |
| Product Type | Boxers & Briefs |
| Size | S/M/L/XL or OEM |
| Feature | Anti-Bacterial, Anti-Static, Breathable, Sustainable, Quick Dry |
| Applicable Season | Spring, Summer, Autumn, Winter |
| Design | According to customer's artwork or samples |
| Packing | According to customer's requirment |
| Brand | According to customer's requirment |
| Sample Time | 7-15 days |
| Free Sample | Free sample available with freight collection |
| Production Time | 45-60 days after order confirmed |
| Function | Breathable, Eco-Friendly, Anti-Bacterial |
Product Showcase



