The myth that bamboo is always softer than cotton
Short answer: Bamboo viscose often feels smoother than cotton, but not always. Softness depends just as much on the fineness of the yarn, the knit, the weight of the fabric and the way it is washed as on the raw material itself.
Why bamboo has a reputation for softness
Viscose from bamboo has a smooth fibre surface because it is spun from a liquid. This produces a fabric that glides easily over the skin and drapes softly. Many people notice the difference the first time they put on a bamboo top, and that is how the reputation arose. Yet that first impression only tells you something about the particular piece of fabric in your hands, not about every fabric made from the two materials.
Cotton comes in many qualities
Cotton is not one single thing. Short staple cotton gives a rougher fabric that pills more readily, while long staple varieties such as pima or Egyptian cotton can become very soft and smooth. A fine, combed cotton jersey can easily feel softer than a thick, loosely knitted bamboo viscose. Compare a cheap cotton item with a good bamboo item and the outcome is decided in advance, but that is not a fair comparison of the materials themselves.
Knit and weight matter a great deal
The same fibre can become completely different fabrics. A thin single jersey feels light and supple, while a rib knit is stretchier and firmer. A heavy fabric feels fuller, a light fabric more airy. That is why bamboo underwear for men and a cotton item of the same weight and knit can be closer to each other than you might expect when you only look at the name of the fibre on the label.
Washing changes the feel over time
Cotton often becomes softer over the years, because the fibres open up slightly with every wash. Viscose, on the other hand, can become a little stiffer if it is washed too hot or dried harshly, and it may lose some of its sheen. Both materials do best with a moderate temperature and gentle drying. How you care for your clothes therefore affects softness at least as much as the material they are made from in the first place.
Softness is not the only thing that counts
When choosing a fabric, softness is just one property among many. Cotton copes well with heat and heavy use and is easy to look after. Bamboo viscose is smooth and drapes beautifully but is weaker when wet. For textiles around the house, such as home and homewear in bamboo, the smooth drape can be an advantage, while cotton may be the sturdier choice for things that see hard use every single day.
How to compare for yourself
The best test is to feel the fabrics side by side and read the care label. Look at the fibre content and whether elastane is included. Feel the inside, where seams and stitches show clearly. Wash a new piece a few times before you judge it. Brands such as Nordic Weaving use bamboo viscose, and by trying different fabrics you will find out for yourself what you actually prefer to wear.
Frequently asked questions
Is bamboo always smoother than cotton
The fibre is often smoother, but the structure of the fabric can change that. A fine cotton jersey can feel as smooth as a coarse bamboo viscose.
Why does my bamboo clothing feel stiff after washing
It is often caused by high heat or tumble drying. Try a lower temperature and let the garment dry flat or on a hanger.
Which material lasts longer
Cotton generally tolerates more abrasion and heat. Bamboo viscose lasts well if it is washed gently and not wrung hard while wet.
You can find the full range at Bamboo-Clothing.com.
