Using these New Balance insoles is easy. Just take out the existing insoles from your shoes and place these new ones in. Make sure they fit well and are aligned properly. When it comes to care, you can take them out of your shoes regularly to let them air dry. This helps keep them fresh and reduces odor. If they get dirty, you can gently hand - wash them with mild soap and water. Then, let them dry completely before putting them back in your shoes. Also, remember to check the insoles regularly for any signs of wear and tear. If they start to lose their shape or support, it might be time to replace them. These insoles are suitable for both men and women, so you can enjoy their benefits regardless of your gender.