Superfeet%C2%AE%20merinoGREY%E2%84%A2%20features%20a%20merino%20wool%20top%20layer%20added%20to%20Superfeet’s%20most%20popular%20insole%2C%20the%20Superfeet%20GREEN.%20So%20you%20can%20enjoy%20legendary%20support%20with%20all-season%20comfort.FEATURESA.%20STABILISER%20CAPActs%20as%20the%20base%20of%20the%20insole%20that%20supports%20the%20rearfoot%20and%20provides%20structure%20and%20stability%20to%20the%20foam%20layer.B.%20DEEP%20HEEL%20CUPFeatures%20the%20widest%20and%20deepest%20heel%20cup%20that%20offers%20maximum%20support%20and%20can%20help%20with%20natural%20shock%20absorption.C.%20BIO-MECHANICAL%20SHAPEHas%20the%20most%20shape%20to%20help%20stabilise%20and%20support%20the%20foot%2C%20which%20can%20help%20reduce%20stress%20on%20feet%2C%20ankles%20and%20knees.D.%20FELTED%20MERINO%20WOOLRegulates%20temperature%2C%20wicks%20moisture%20and%20stays%20fresh%20longer.E.%20HIGH-DENSITY%20FOAM%20LAYERClosed-cell%20foam%20supports%20and%20cushions%20the%20foot%20for%20long-lasting%20comfort.F.%20Superfeet%20merinoGREY%20insoles%20are%20free%20of%20latex%2C%20nickel%20sulphate%2C%20formaldehyde%20and%20preservatives.