UPDATE - 6/10/20: In light of new COVID Safe guidelines, changes have been made to the Participant Guide (in particular, regarding both the 50km and 21km start times). Please make sure you download and refer to Version 2 of the guide, as indicated bottom right of the cover page, from now on.
To find your correct shirt size, please find a running shirt that fits you well. Lay the shirt flat on a table and measure the width (of just one side) of the shirt from arm pit to arm pit.
|Half Chest (cm)||49||51||53.5||56|
|SIZE||XX Small||X Small||Small||Medium||Large||X Large|
|Half Chest (cm)||41||43.5||46||48.5||51||53.5|
If you have worn a shirt 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 shirt, due to manufacturing tolerances there may be a slight difference in your shirt dimensions from those recorded in this table.