Soft, dense and absorbent, Supima® cotton is only grown in the USA and is sought out for its sumptuous quality and plush, weighty feel. This long fibre cotton with a silk-like yarn has a softer, smoother feel with a rich lustre. It's stronger than other fibres so less prone to pilling, and the fineness of the fibres means they absorb dyes brilliantly, giving them lasting colour. Grown in California's sun-drenched San Joaquin Valley and the American southwest, Supima® is short for 'superior US Pima' cotton. This trademark is your guarantee that our towels are 100% American Pima cotton. Worth knowing GSM stands for grams per square metre and is a standard measurement for the weight of a towel. A high GSM is a good indication of a thick, highly absorbent towel and at 720gsm these are the plushest of all our towels. Quality, wash after wash At John Lewis & Partners our bath linen is reassuringly well made. We test to the highest quality standards of durability, colour-fastness and performance. Face cloth, L30 x W30cm Guest towel, L65 x W40cm Hand towel, L100 x W50cm Bath towel, L140 x W70cm Bath sheet, L165 x W90cm Extra large bath sheet, L180 x W100cm (available in selected colours) Matching bath mats are available for you to complete the look throughout your bathroom.