Shoes › Bloch Neo Flex - Slip on Jazz Shoe / Tan Image 1 of 2 Image 2 of 2 Bloch Neo Flex - Slip on Jazz Shoe / Tan from £35.00 The Neo-Flex slip on jazz shoe is a newversion of Bloch's highly popular Neo-Jazz. TAN: Select TAN C10 C11 C12 C13 Uk1 UK2 UK3 UK4 UK5 UK6 UK7 UK8 Quantity: Purchase Added! The Neo-Flex slip on jazz shoe is a newversion of Bloch's highly popular Neo-Jazz.