When sourcing cotton t-shirts for B2B wholesale on Alibaba.com, understanding fabric specifications is the foundation of making informed purchasing decisions. Three core attributes define t-shirt quality and cost: GSM (grams per square meter), yarn count, and cotton grade. Each affects the final product's feel, durability, and price point differently.
GSM (Grams Per Square Meter) measures fabric weight and thickness. Contrary to common belief, higher GSM doesn't automatically mean better quality—it indicates different use cases. Lightweight fabrics (120-160 GSM) work well for promotional giveaways and summer wear in hot climates like Southeast Asia. Standard weight (180-220 GSM) is the B2B wholesale sweet spot, offering durability without sacrificing breathability. Heavyweight options (230-280 GSM) appeal to streetwear brands and premium retailers willing to pay 40-60% more for perceived quality [2].
Yarn Count indicates thread fineness. Higher numbers mean finer yarns: 26S-32S for basic tees, 32S-40S for premium quality, 40S-60S for luxury segments. A 40S single-jersey cotton feels noticeably softer than 26S but costs 20-30% more. For most B2B buyers on Alibaba.com, 32S-40S offers the optimal balance between quality perception and margin protection [3].
Cotton T-Shirt Fabric Specification Comparison Matrix
| Specification | Budget/Promotional | Standard B2B Wholesale | Premium/Streetwear | Luxury/Boutique |
|---|---|---|---|---|
| GSM Weight | 120-160 GSM | 180-220 GSM | 230-280 GSM | 290+ GSM |
| Yarn Count | 20S-26S | 32S-40S | 40S-50S | 50S-60S+ |
| Cotton Type | Open-end cotton | Carded combed cotton | Combed ring-spun | Organic/Pima/Supima |
| Price Range (FOB) | $1.50-$2.50 | $2.50-$4.00 | $4.00-$6.50 | $6.50-$12.00+ |
| Best For | Events, giveaways | Retail, uniforms | Streetwear brands | High-end fashion |
| Durability Expectation | 20-30 washes | 50-80 washes | 80-120 washes | 120+ washes |
Cotton Grade refers to fiber quality and origin. Common options include: Open-end cotton (budget, slightly rougher feel), Carded cotton (mid-range, good value), Combed cotton (premium, softer, less pilling), and Organic/Pima/Supima (luxury, certified sustainable or extra-long staple). For Southeast Asian exporters targeting regional markets, combed cotton 32S-40S at 180-220 GSM represents the most versatile configuration—acceptable quality for retail while maintaining competitive pricing [3].

