Shires Tempest Original 300g Heavyweight Detach-A-Neck Turnout Rug Purple/Lime. The Shires Tempest Original 300 Turnout Rug & Neck Set is a waterproof and breathable turnout rug, ideal for the winter weather. The Tempest Original 300 Turnout offers a 600D ShireTex ripstop outer and taped seams for maximum protection against the weather. The ShireTex outer is a waterproof and breathable fabric that has been coated with a special hydrophilic coating. The hydrophilic coating draws excess sweat and moisture to the outside of the rug ensuring the horse stays dry and comfortable. Read more… The Tempest Original 300 Turnout features twin surcingle chest fastenings, adjustable cross surcingles, adjustable fillet strap, a full lining and a tail flap. The Tempest 300 also offers 300g of filling for warmth and comfort.