Never have cold feet again! The linseed filling of our SISSEL® Linum Relax Slippers stores the heat and keeps your feet warm for up to 2 hours. Simply heat up in your oven or microwave, put on and enjoy blissful warmth! These Linum Relax Slippers both sooth, and promote circulation. They can also be chilled in the summer to treat swollen feet. • Pair • Size: one size