<p>An apparel system may include an article of apparel and at least one insert element. The apparel has an inner layer and an outer layer positioned adjacent to the inner layer such that a surface of the inner layer contacts a surface of the outer layer. The insert elements is locatable between the inner layer and the outer layer. In some configurations, the outer layer stretches at least thirty percent prior to tensile failure. In order to secure the insert element within the apparel, a coefficient of static friction between the insert element and the apparel may be at least 0.70. In some configurations, a surface of the inner layer contacts and is unsecured to a surface of the outer layer in at least thirty percent of the apparel.</p>
