GLIDE-STEP™ Geometric Hollow Compression Structure Midsole SLIP-INS® Instant Comfort Technology Enhanced Breathable Memory Foam Insole Sales Highlights The GLIDE-STEP SWIFT series slip-on casual shoes feature a midsole with GLIDE-STEP™ geometric hollow compression structure design, along with SLIP-INS® Instant Comfort Technology, allowing for easy on and off, while providing comfort with every step.