Built using the same performance engineering that was used to developed our CRYO Winter Boot. The VYRL 5MM boot uses the same materials used in the Hyperflex VYRL suits series.

FEATURES
• 100% lined with Fire Fleece™ the same heat retaining lining used in the 5/4 winter suits.
• Fusion welded seams.
• Dual axis instep strap allows for maximum torque and comfort adjustments.
• Integrated Multi-layer sole, heal and toe layers are vulcanized as a unit to provide maximum support while not compromising flexibility.
• Wide finger loop above heel for easy on and off
• Locking internal skin entry cuffs.
• Square toe box design