The Basecamp Thermal shell, is a sleek ultra-light - Weigh faux down fill jacket, with a high density water repellent outer shell.Washing Instructions Machine wash cold, gentle cycle with like colours. Do not bleach. Hang to dry. Do not iron decoration. Do not dry clean. - The Basecamp Thermal shell, is a sleek ultra-light - Weigh faux down fill jacket, with a high density water repellent outer shell.Washing Instructions Machine wash cold, gentle cycle with like colours. Do not bleach. Hang to dry. Do not iron decoration. Do not dry clean.