“ Necessity – the mother of invention .” Sealskinz is a creation of necessity , it ’ s about the need to be first out and last in , the need to defy the outdoors , the need to defy the cold and the wet , the need to perform , the need to protect . If you think about it , in the outdoors the “ Achilles heel ” is in fact an Achilles ; foot , head , ear , finger , or toe and this is where we are vulnerable , this is where we need protection . This necessity created Sealskinz , the first laminated sock , keeping wet out and warmth in , Sealskinz three-layer patented sock broke the mould , Hats and gloves followed using the same technology .