Online for Equine offer the Cottage Craft Bent Leg Safety Stirrup Irons.
These Stirrup Irons are a must have for safety, ideal for everyday use but also smart enough for competitions. These stirrups are designed to prevent yuor foot being trapped in the stirrup in the event of a fall.
To measure the size of stirrup you need measure the width of your foot whilst wearing your regular riding boots and add on 1.25cm of space to either side. This will give you the width of stirrup iron which you require.
The Cottage Craft Stirrup Irons are made from Stainless Steel.
Available in sizes 3.75'' - 4.5'' in quarter inch incriments.