O’Neill Hyperfreak Fire 5/4/3mm ST Adult Boot

O’Neill Hyperfreak Fire 5/4/3mm ST Adult Boot is a premium cold-water surf boot designed to keep your feet warm, protected and comfortable in demanding conditions. Built around O’Neill’s Technobutter 4 Firewall technology, it combines high levels of insulation with a flexible construction for reliable performance when the water temperature drops.

The split-toe design provides a secure, supportive fit and helps reduce movement inside the boot, while the glued and blind-stitched seams are internally taped for improved water resistance and durability. Recycled TB4 Firewall materials provide warmth through the sole, top of the foot and upper, while Krypto Armor on the exterior top foot adds additional protection and durability.

Key Features:

• 6/5/4mm cold-water surf boot
• Split-toe design for a secure, supportive fit
• Technobutter 4 Firewall insulation
• TB4 Firewall made using recycled materials
• TB4X recycled material through the upper and shin
• Krypto Armor recycled material on the exterior top foot
• Ultraflex exterior sole and upper/shin
• Glued and blind-stitched seams
• Seams internally taped with recycled TB3X tape
• Designed for warmth, flexibility and durability in cold water

Ideal for: Cold-water surfing, winter surf sessions and watersports where maximum warmth, protection and a secure split-toe fit are essential.