Odin chairs at Made.com
The design of the chair seems to combine elements from other classic chairs: that chair back, for example, looks a bit like the Arne Jacobsen Ant chair, while the seat is like that on the Ercol Butterfly chair. Whatever the individual influences, the overall look is definitely classic mid-century.
They're part of Made.com's Nordic collection, referencing Scandinavian design. The chairs are made from plywood with a walnut veneer and have chrome steel legs. They arrive requiring assembly.
As always with Made.com, there's a long wait for the chairs to be made and delivered but that's reflected in the price - in this case a very reasonable £139 for the pair.
See them online