I'm moving to London for grad school soon. I'm woefully underequipped in terms of rain gear. I'm looking for traditional English/British rain gear recommendations. I need rain-proof outerwear for hot and cold weather, footwear and headgear recommendations. I'm on a budget so if you also have recommendations on pieces to look for when thrifting/vintage stores/factory outlets or sales to look out or, that would also be very much appreciated. Thanks!