These are for the folks that need a bit more on the hands, an insurance policy against cold digits. Ibex used a Merino fleece lining and the same fill that graces the Aire layers in a full mitten with a Pittards leather palm. Wool insulation: Palm: 1 layer 70 gm. Back of hand: 1 layer 100 gm. Dry-tex stretch panel adds flexibility. Weight: 7.02. No more cold hands.