Insider Grid 2

123456
Across
  1. 1. The absence of heaviness in both fabric and construction (5)
  2. 4. Open footwear, best reserved for leisure settings (7)
  3. 5. The principle of dressing appropriately for heat without appearing casual (7)
  4. 6. A shortened trouser, acceptable only in the right context (6)
Down
  1. 1. A breathable fabric synonymous with summer tailoring (6)
  2. 2. A Cuban-origin shirt designed for airflow and ease (10)
  3. 3. A weave that allows air to pass through, ideal for heat (5)