The NATS 1590 Boot Liner is a premium, removable thermal insert designed to maximize warmth and comfort in extreme winter conditions. Crafted with multi-layer insulationincluding wool and radiant aluminium the liner traps body heat efficiently while allowing moisture to escape, keeping your feet dry and cozy all day. Its lightweight, breathable, and easy to remove for cleaning or drying, ensuring long-lasting performance. Whether replacing a worn liner or adding extra insulation, the 1590 liner is the perfect match for NATS Ultra Light EVA Boots or similar cold-weather footwear.

• Multi-layer insulation with wool and aluminium for exceptional heat retention

• Comfort-rated to -70C when paired with NATS 1590 boots

• Removable and washable design for easy care and lasting freshness

• Lightweight and breathable construction prevents moisture buildup