This is a traditional style Viking boot with 2 toggles except they are made in a hobnob (flat sole) fashion and not a turn shoe as would have been done in period. This sole is better for our modern wider feet that are used to modern shoes.
These shoes would have also been worn by many of the contemporary peoples such as the Saxons, Jutes, and Visigoths. Some of these styles were worn into the latter middle ages.
This is a period style shoe with documentation found in Stepping through Time (Archaeological Foodwear from Prehistoric Times until 1800 by Olaf Goubitz.) This academic book documents actual medieval shoes found preserved and discusses historical construction techniques. This particular shoe is found on page 149 of the 2007 paperback edition. The shoe is depicted in figures 5 and 6.
Our sizes are listed in US Mens (M), Womens (W), These shoes are pretty true to size. Since they are made of leather they will stretch.
Shoes can be returned unworn for a full refund if they don't fit.