In the middle or on the outside. On summer climbing or mountain tours, a hard shell or soft shell can often end up staying in your backpack and your mid-layer quickly becomes an all-purpose jacket. The Eiswand Guide ML Hooded Jacket Men can be worn both as an outer layer or as cozy mid-layer under a weather protection jacket. The extremely abrasion-proof and durable elastic Polartec Thermal Pro with Hardface technology provides protection from heavy backpacks and contact with rocks. The Mammut Vertical Motion ConstructionTM ensures that the jacket sits perfectly while climbing and the drawstring on the hem can be adjusted with one hand to block out the wind.