When sourcing knitted t-shirt fabrics on Alibaba.com, understanding the fundamental difference between single jersey and double jersey structures is essential for making informed decisions. These two constructions represent the most common options for t-shirt manufacturing, each with distinct performance characteristics that directly impact breathability, durability, and end-user comfort.
Single Jersey Structure is the most widely used knit for t-shirts globally. It features one needle bed producing a fabric with a distinct front and back side. The front displays clear vertical wales (loops), while the back shows semi-circular loops. This asymmetry creates a lightweight, flexible fabric with excellent drape and superior air permeability. Single jersey is the default choice for breathable men's tees, particularly in hot and humid climates common across Southeast Asia, the Middle East, and tropical regions.
Double Jersey (Interlock) Structure uses two needle beds producing a fabric where both sides appear identical with fine vertical wales. This construction creates a thicker, more stable fabric that doesn't curl at the edges (unlike single jersey). Double jersey offers better shape retention, a premium hand feel, and improved opacity, but at the cost of reduced breathability compared to single jersey. It's commonly selected for higher-priced t-shirts, polo shirts, and garments where structure and durability are prioritized over maximum airflow.
Rib Knit Structures represent another category, featuring alternating raised and recessed vertical lines. Rib is highly elastic and commonly used for collar bands, cuffs, and body panels in fitted garments. While not typical for full t-shirt bodies, rib variations (1x1, 2x2) are important for understanding complete garment construction.
Knitted Fabric Structure Comparison for T-Shirts
| Structure Type | Breathability Rating | Typical GSM Range | Best Use Case | Cost Position | Key Limitation |
|---|---|---|---|---|---|
| Single Jersey | ★★★★★ (Highest) | 120-180 GSM | Hot climate sports wear, everyday tees, budget-friendly bulk orders | Lower cost per meter | Curls at cut edges, less shape retention |
| Double Jersey (Interlock) | ★★★☆☆ (Moderate) | 160-220 GSM | Premium casual wear, polo shirts, structured tees | 15-25% higher than single jersey | Reduced air permeability, heavier hand |
| Rib Knit (Body) | ★★★☆☆ (Moderate) | 180-240 GSM | Fitted fashion tees, women's styles, stretch-focused designs | 20-30% higher than single jersey | Limited to specific style applications |
| Jersey with Elastane (2-5%) | ★★★★☆ (High) | 140-190 GSM | Athletic wear, stretch tees, form-fitting casual | 10-20% premium over 100% cotton | May reduce breathability slightly vs pure cotton |
Air permeability and breathability are not the same thing. Breathability means not only the flow of air through the fabric but also depends upon the flow of water vapor and moisture management. Single jersey excels in both metrics due to its open loop structure [5].

