Used for swimming. It's a size M, but it has a relaxed fit. I think it would also fit someone who wears a size L. The width of the armpit is 8cm. I think it's easier to use than competitive swimwear from the Heisei era because the cut and design are not as flashy. The logo remains. There is no hardening of the fabric or elastic, but please understand that there is some wear and tear as time has passed since it was sold. It has lining and a drawstring. There is no box or tag. As mentioned above, please consider this as a used item. I will fold it up small and ship it.