Bamboo viscose versus acrylic

Short answer: Acrylic is cheap, warm and prone to bobbling. Bamboo viscose is softer, cooler and smells less, but does not insulate in the same way.

What acrylic was made for

Acrylic was developed as a cheap substitute for wool. It insulates and holds its shape, but it does not move moisture and turns clammy against the skin quickly. That is why it appears mainly in jumpers rather than underwear.

Bobbling is acrylic's weakness

Acrylic fibres are short and smooth and work their way out of the yarn easily, then roll into balls. An acrylic jumper usually bobbles heavily after only a few wears. Bamboo viscose bobbles less and mainly at the start. See sweat clothing.

Warmth versus comfort

Acrylic insulates better than bamboo viscose at the same thickness. On the other hand you sweat easily in it, because the moisture stays put. For a layer against the skin, bamboo is clearly better. See bamboo undershirts for women.

What to use when

Acrylic can make sense in an outer jumper meant to insulate cheaply. Against the skin and for anything worn for long stretches, bamboo viscose is the better choice. See bamboo clothing for women.

Frequently asked questions

Does acrylic smell sooner

Yes, like polyester, because the oils stay on the fibre.

Can acrylic be washed hot

No. Acrylic melts and distorts at high heat.

Is acrylic cheaper than bamboo viscose

Usually yes, but the useful life is often shorter because of bobbling.