A comfortable, supportive odor absorbing insole covering the inner sole of footwear has a bottom inner sole engaging open cellular resilient cushion layer, impregnated with odor adsorbing chemicals such as activated charcoal zeolites, or silica gel, and a natural pile top layer such as lambskin shearling providing comfortable support and loft while protecting the foot or sock of the wearer against discoloration or irritation from the absorbent chemicals. The layers of the insole are laminated into integral unitary relation by heat sealing or by glue or binders which do not impede flow of air. The layers may also be simply stretched together. The alternating application and release of foot pressure on the insole, as when walking, will circulate air in the footwear into intimate contact with the chemical for absorption of moisture and destruction of foot odors.