This species exhibits a unique physical appearance, characterized by a wingspan of approximately 25-30 cm and a body length of 6-9 cm. The fur is typically short, soft and can range in colour from dark brown to greyish tones, often with lighter underbellies. Notable features include elongated ears and a distinctive tail that extends beyond the tail membrane, giving rise to its common name. The Pacific sheath-tailed bat’s large, rounded wings are adapted for agile flight, making it a skilled maneuverer in dense vegetation.