The dual-use insole: warm during winter, cool in the summer. The Letex insole is a combination of leather fibre and felt. The leather fibre keeps your feet dry and fresh during summer and when flipped over before winter, the felt side will keep your feet warm. The perforation makes for the air to circulate in the shoe.
Top: natural leather, 1-1,2 mm thickness
Under layer: white needle punched felt, 23% wool, 47% viscose and 30% polyester