THERMAL

Designed to protect from cold (7)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 16,583 — 2023-06-29 23:00:27
  12A: Relating to heat (7)
• Quick crossword No 15,367 — 2019-08-07 23:00:00
  2D: Designed to protect from cold (7)