EMMA's current recycled materials (Produced in the Netherlands):

Lining with 65-76% recycled polyester.

Inlay sole with 85% recycled foam.

Shoebox, made of 'FSC MIX' paper,
a mixture of materials from FSC-certified forests, recycled materials, and/or FSC-controlled wood.

98% RPET laces and 95% Denim X laces from recycled jeans.

Socks with 12-30% recycled nylon from fishing nets.