In an article titled "Back in Style: High-top Rock Shoes" spadout.com reviews the Five Ten Grandstone.
"New this year is the Grandstone, Five Ten’s only high-top. The forefoot is stiff, coated with rubber, and has a more chiseled toe than the JB. The narrow toe profile fits into all but the slimmest finger cracks. The Grandstone flexes generously under the arch and has a flat, asymmetric last, both of which allow it to conform to a climber’s foot."
"This adds sensitivity but subtracts support for all-day use. After attempting to free El Capitan’s Mescalito with Tommy Caldwell, Kevin Jorgeson helped with R&D for the Grandstone, which is designed with El Cap free routes in mind. Naturally, this shoe excels at edging and cracks. The split-grained leather upper and canvas lining not only add comfort and durability, they ensure that the Grandstone won’t stretch much. Make sure they fit well out of the box because they’ll stretch less than half a size. The sole is 4.2-mm Stealth C4 rubber – probably the most popular rubber in America – an ideal blend of sticky and durable."
Read the rest of the review at spadout.com