Details from ThirtyTwo:

The STW Double Boa has the same great comfort and easy flex but now with zonal lockdown control. Dual BOA Closure System allows you to lock in your forefoot and control upper stability independently.

Fit: Comfort
Lacing: Boa
Footbed: Comfort
Flex: Soft

Tech Features:

• 1:1 Lasting
• Dual BOA Closure System
• STI Evolution Foam™ Outsole
• 3D Molded Tongue
• Internal Lacing System
• Heel Hold System