How 1×1 and 2×2 rib knits differ for tee neckbands, hoodie cuffs and hems in stretch and recovery, why elastane helps shape holding, and how to specify and test rib before bulk.
How fibre generic names and brand names fit together on tee labels in the US and UK or EU, what the TENCEL brand needs, and how to avoid misuse on tags and websites.
When to use sublimation and when screen print: how each works, why sublimation suits polyester and not cotton, the effect on feel and stretch, and which fastness tests to ask for.
How to specify and check stretch, recovery and growth in cotton-elastane jersey for fitted tees, which ASTM stretch methods apply, and how to write limits into a fabric spec.
Why thumbholes in running top cuffs tear or stretch out, how hole finish, cuff length, fabric recovery and stitching matter, and how to test washed samples.
When US state laws require a suffocation warning on plastic bags, what it must say, how bag size and film thickness matter, and how to check retailers and marketplaces.
What the Better Cotton Claims Framework allows on hang tags and websites, why mass balance cannot support a product label, who may use the label, and how to word a claim.
How embroidery and screen print compare on hoodie and tee logos: what drives cost, hand feel, wash durability and minimums, and which wash and rubbing tests to run before choosing.
How polyester-elastane and cotton-elastane boxer briefs differ in moisture handling, feel, shape, odour, pilling and care, and what to test before choosing a fabric.
How to size compression tops from body measurements and fabric stretch range instead of flat garment widths, how to set chart ranges and what to test on fit wearers.
How cotton fleece, French terry and poly-cotton differ for a custom hoodie: warmth, weight, shrinkage, pilling and prints, and which tests to run on washed samples before bulk.
What the EU REACH restriction on azo colourants covers for textiles, the amine limit, which products fall under it, and what to ask dye and fabric suppliers for.
