Which one of our towels is the heaviest? Rebecca Leonard December 28, 2019 13:50 Updated Follow Our heaviest towels are those made with Supima cotton. They weigh in at a luxurious 750gsm and feel soft and very fluffy. Related articles What is the softest towel in our range? Is it better to have a higher GSM? How do I personalise my towel? What size is a Bath Sheet? What is GSM? Comments 0 comments Please sign in to leave a comment.