Men wore similar full length swimsuits to women.
Between the wars the introduction of swimming lessons in schools increased ownership of bathing costumes.
All are knitted and have singlet tops but can feature legs of varied length . School or club regulations changed slowly and length of leg is only a rough guide to the date.
Photographs from the late thirties can show both men in regulation swimwear and men in bathing trunks.
For both men and women it was considered distasteful to show ones navel and bathing trunks were worn high for this reason.
Name in pencil on back "Ray" date mid thirties about 18 years old- born about 1918