Aurora Zip Paddock Size:LDS 8 Built in steel shank for H8159 Built in steel shank for increased stability Featuring all new 4 Layer Vertical Technology and made from high quality full grain leathers treated with waterproofing to increase durability in wet conditions Featuring all new 4 Layer Vertical Technology and made from high quality full grain leathers treated with waterproofing to increase durability in wet conditions with a YKK® brass zipper up to the arch and down into the forefoot for unparalleled stability in the stirrup and extreme comfort on the groundTHREE: Pressure absorbing insole which establishes the base comfort to reduce fatigueFOUR: A new footbed made from durable closed cell memory foam