What does 'One Size' mean? 27 August 2024 02:48 Updated If a garment is listed as 'One Size' sizing, it is designed to fit our full size range comfortably. Related articles Some products are only available in size S and L - which size should I get? XXS–XXL and Numerical Sizing guide I've looked at the sizing chart, but I am still not sure what size to order – help! Do you offer alterations? How do I measure my bust/waist/hip?