If hot trails and desert day hikes are on your life list of things to do Merrell's versatile and breathable Chameleon II Ventilator shoe is an essential companion. Like other Chameleon II offerings the Chameleon II Ventilator is a lightweight day hiker but this one breathes deeper with flow-through defense mesh panels and an airy Airflow Mesh lining. Above the impact-absorbing Air Cushion® midsole is a contoured 4.5-mm. anatomical footbed backed by a supportive nylon 6.6 injection molded arch shank and a female-specific Q-Form™ triple density compression molded EVA frame. This is a great summer trail shoe that adapts well to other hot weather activities but if you anticipate rainy outings take a moment to click over to the waterproof and breathable Merrell Chameleon II Gore-Tex® XCR® shoe.