Black Diamond designed the HiLight Tent with base camps, winter mountaineering, and anchoring in on steep pitches in mind. It's a lightweight, 4-season tent that's easy to hike in when the trail to the alpine is long and arduous. The 30D polyester fabric is light and easy to pack, and the two-and-a-half pole design keeps the fabric tight in all weather. Fully sealed seams prevent raindrops or snowflakes from seeping through, and Flow Manifold lets interior heat convection and exterior airflow to draw moisture vapor and stale air out of the tent. Two full-size doors with mesh windows amplify airflow for even better ventilation on summer trips.