Lab-Validated Business-Casual Shirt
Long sleeve button-up shirt with quantified thermal comfort for temperate climates.
Technical Specifications
✓ Fabric Composition
- 65% Cotton / 35% Polyester (±3% tolerance)
- 190 GSM jersey knit (ASTM D3776 tested)
- pH 5.5–7.0 (EN ISO 3071 compliant)
✓ Design Validation
- V-neck depth: 2.5" (±0.2") from collarbone
- Sleeve length: 25" (fits arm length 28"–32")
- Double-needle shoulder seams (ISO 4915:2018)
Performance Testing
- Air permeability: 520 L/m²/s (ASTM D737)
- Colorfastness: Grade 4 after 30 washes (AATCC 61-3A)
- Wrinkle recovery: 92% (AATCC 128)
Intended Use
- Temperature range: 59°F–77°F (15°C–25°C)
- Activity compatibility:
- Office wear: Compatible with blazers (armhole mobility ≥120°)
- Commuting: Shoulder seam strength 130N (BS 3320)
- Social events: Stain resistance to 10% ethanol (AATCC 175)
Care Protocol
- Machine wash ≤104°F (40°C)
- Line dry only (tumble drying voids warranty)
- Iron on reverse side (≤300°F / 149°C)
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