Speedo Red Endurance Brief - Size 36 but fits like M

Speedo endurance brief meant for training. 53% Polyester/47% polyester PBT. Not much stretch, these are very snug fittinf. Despite being size 36, I’d day better for 32 or 34/ Size M. Some of the lining is showing on left seam, this was used for swimming laps. But lots of life in them especially with this shade of red.