Textile engineer and founder of TOZAHIDA
Kamrul Islam is a textile engineer with more than 14 years of hands-on experience in fabric dyeing and development, and the founder of the Australian lingerie brand TOZAHIDA. He works every day on dye recipes, shade approval, fabric development and functional finishes, and writes practical guides on fabrics, fit and garment care.
Every guide on this site comes from this background: years on the dye-house floor, then in fabric development and shade approval.
University of Chittagong, specialising in Wet Processing Technology: the science of dyeing, printing and finishing fabric.
Joined a dyeing operation as an engineer, controlling dyeing processes and advising across textile production.
Ran day-to-day dyeing production: batches, machines, recipes and the quality checks that decide whether a fabric passes.
Develops new fabrics, builds dye recipes, approves shades and works on functional finishes.
An Australian lingerie and clothing brand built on the same fabric standards, sold through Amazon.com.au.
Why colours fade, bleed or turn patchy, and how to choose fabrics that keep their shade.
Silk, linen, cotton, modal, lyocell, wool and synthetics: what each fibre does on your skin.
Softening, water-repellent, wicking and UV finishes: what they do and how long they last.
How heat, detergent and friction damage fabric, and the simple habits that make clothes last.
I read the material composition on every product I recommend, not just the title, and I only recommend other brands when the fabric and construction pass the same checks I use at work. I look for premium pieces that will last, and I say so when a product has a weakness, such as dry-clean-only care or a blended fibre.
Some links earn a small commission from Amazon at no cost to you, and every article that contains them says so at the top. TOZAHIDA products are my own brand and are clearly marked. A commission never decides what I recommend.
How to choose a real silk robe: silk weight, weave, length and care labels explained by a textile engineer, so your gift looks and lasts like silk should.
How to choose men's silk pyjamas: mulberry silk, momme weight, fit and care explained by a textile engineer, plus well-reviewed sets on Amazon Australia.
How waterproof jackets work: Gore-Tex membranes, PU coatings, DWR, waterproof ratings and seam taping, explained by a textile engineer for Australian weather.
What UPF 50+ means, how fabric blocks UV, and how to choose sun-protective clothing under the Australian standard, explained by a textile engineer.
What modal fabric is, how it is made from beech wood, why it feels so soft, and how it compares with cotton, viscose and Tencel, from a textile engineer.
What Tencel lyocell is, how it is made in a closed-loop process, how it compares with cotton, modal and viscose, and how to care for it.
Most bamboo fabric is viscose. A textile engineer explains how bamboo clothing is made, how to read the label, and when bamboo is a good choice.
Which underwear fabric is best for comfort, breathability and everyday wear? A textile engineer compares cotton, modal, microfibre, silk and merino.
Why fabric pills, which fibres pill most, how to remove pills safely and how to stop new ones forming, explained by a textile engineer.
Measure your bra size at home in five minutes with a soft tape, work out your Australian band and cup size, and check the fit, from a lingerie brand founder.