A towel's absorbency is affected by three things:
- The fibre used to make the towel - higher quality cottons such as Supima or Egyptian cotton have longer staple lengths which make them more absorbent, softer and more durable.
- The weight of the towel, known as GSM (grammes per square metre) - a towel with a higher GSM absorbs more water than an equivalent towel with a low GSM.
- The yarn used to make the towel. Fewer twists in the yarn result in a greater surface area that absorbs more water.
The way you care for your towel will also have an effect - using fabric conditioner will your towel's absorbency, so wash your towels with detergent only.