Composition: 95-97% Premium Cotton / 3-5% Lycra (Elastane)
Weight: 340 – 400 GSM (Heavyweight / "Derby" Weight)
Weave: 2x1 Rib Knit (Coarse Gauge / Deep Texture)
Certifications: BCI (Better Cotton Initiative) & GRS (Global Recycled Standard)
1. Key Features & Benefits
Structural Match for Heavy Fabrics:
A common quality failure in winter wear is using a lightweight rib on a heavy jacket, causing the trim to ripple or sag. This 340-400 GSM rib matches the weight of Heavy Fleece (300+ GSM), French Terry, and Denim, creating a seamless, high-end transition from body to trim.
"Wind-Block" Density:
The high density and tight knit construction act as a thermal seal. Used as cuffs and waistbands, it effectively traps body heat and blocks cold wind from entering sleeves or hemlines—a critical functional requirement for winter jackets.
Robust "Snap-Back" Recovery:
Infused with high-power Lycra, this rib withstands the high tension of being stretched over hands and hips repeatedly. It returns to its exact original dimension immediately, ensuring the jacket maintains its silhouette for years.
Rugged, Chunky Texture:
The coarse gauge 2x1 structure gives a rugged, masculine, and premium aesthetic. It adds visual value to the garment, making it look expensive and durable.
2. Technical Specifications
Property
Value/Description
GSM Range
340 – 400 g/m²
Construction
2x1 Rib (Heavy Gauge / Deep Wales)
Elastane Content
High Power Lycra (typically 4-5% for maximum hold)
Stretch
Moderate Stretch, High Tension Recovery
Handfeel
Thick, Compact, Supportive, Cotton-rich
Bursting Strength
High (Designed for outerwear durability)
Color Fastness
Reactive Dyed (Excellent fastness to washing/rubbing)
Sustainability
BCI Sourced / GRS Verified
3. Recommended Applications
Outerwear & Jackets:
Varsity / Bomber Jackets: The classic thick collar, cuff, and waistband look.
Denim Jackets: Heavy enough to be sewn onto denim without tearing or puckering.
Winter Coats: Inner cuffs for parkas to keep wrists warm.
Heavyweight Fleece:
Premium "Streetwear" Hoodies (400+ GSM body fabric) require this rib to balance the weight.
Oversized Sweatshirts where the rib provides structure to the loose fit.
Bottoms:
Waistbands for heavy joggers where a strong hold is needed to support the weight of the pants and pockets.
4. Sustainability & Compliance
Longevity as Sustainability:
The primary sustainable feature here is Durability. Cheap ribs fray and lose elasticity, causing consumers to discard jackets prematurely. This heavy-duty rib extends the garment's life significantly.
Certified Resources:
Even at this heavy weight, we maintain BCI Cotton and GRS standards, ensuring that your heavy winter collections meet the same eco-compliance targets as your summer tees.
5. Copywriting for Sales / Catalog
Headline: The Heavyweight Anchor: 400 GSM Structural Rib.
Body Copy:
"Don't compromise your outerwear with flimsy trims. Our 340-400 GSM Heavyweight 2x1 Rib is engineered to be the anchor for your premium jackets and heavy fleece collections.
Designed with a rugged, deep-wale texture and reinforced with high-power Lycra, this fabric provides the structural integrity needed to support heavyweight body fabrics like denim, French Terry, and tech fleece. It functions as a thermal seal, blocking wind at the cuffs and waist while delivering immediate, high-tension recovery. Rugged, sustainable (BCI/GRS), and built to last—this is the hardware your winter garments deserve."