Pattens (Medieval:patyns) are a type of overshoe that are strapped to the feet over the shoe developed during the early 12th century but not very common until the late 14th. They reduce wear on the sole and raised the foot up out of the wet.
Pattens fall into three types:
- one piece wooden platform soles
- flat, wooden hinged soles (popular in the early 15th century
- multi-layered leather soles from the late 13th century but uncommon before the end of the 14th century
In England medieval pattens were made of a variety of woods, but willow, poplar (both resitant to splintering and long lasting if kept damp) and alder (resistant and durable when wet) were most common. Beech was also sometimes used as well as aspen but only of such timber that was "not apt, sufficient, nor convenient" to be made into arrowshafts.
See Also: wikipedia:patten.