Which one of our towels is the heaviest? Rebecca L May 15, 2020 10:06 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 is GSM? What size is a Bath Sheet? Comments 0 comments Please sign in to leave a comment.