Design:

• The upper from the Si-18 Rannell training shoe is placed on a cup sole bottom inspired by the iconic Si-18 Premier tennis shoe, making this sneaker fresh yet still authentic to K-Swiss heritage tennis roots
• Lace Closure

In-Shoe Comfort:

• Syntheticl leather collar lining
• Die-cut EVA insert midsole
• Die-cut EVA sock liner

Durability & Traction:

• Molded Rubber Outsole