To find your correct singlet size, please find a singlet that fits you well. Lay the singlet flat on a table and measure the width (of just one side) of the singlet from arm pit to arm pit.
|Half Chest (cm)||47||49||52||54.5|
|SIZE||XX Small||X Small||Small||Medium||Large||X Large|
|Half Chest (cm)||40.5||43||45.5||48||50.5||53|
If you have worn a singlet from The Trail Co. before then this is the size you should choose again. Please note: while we try our very hardest to ensure a perfectly fitting singlet, due to manufacturing tolerances there may be a slight difference in your singlet dimensions from those recorded in this table.