Grubs Frostline 5.0

Our View – Grubs Frostline 5.0:

The Grubs Frostline 5.0 is an insulated and waterproof outdoor activity boot with excellent grip and made for all day comfort. Never feel weighed down or uncomfortable in your wellington boots with these Grubs boots are a specifically designed to keep you warm, dry and supported for longer durations.

Using the self-insulating INSU-FOAM ULTRA bootie construction the wearer benefits from a neutral insulator between themselves and the outside. The bootie is both waterproof and insulating and exceeds the long-term effectiveness of waterproof membranes and lofted insulations. Thanks to being a temperature neutral material, it will keep the wearers foot comfortable in a range of 85ºF to sub-zero for a prolonged period.

Chloroprene material commonly used in deep Sea dry suits, is super stretchy (300% stretch!). The Bootie is lined with moisture wicking SUPER-DRI™ terry knit for comfort and maximal 4-way stretch. 

The TRAX Sole made with DURAPRENE rubber and outsole with HEXZORB, give superior grip on a variety of surfaces, the tread is designed to work with the action of the foot into zones for Grip, Traction, Stability and breaking.

Specifications – Grubs Frostline 5.0:

• 5MM INSU-FOAM ULTRA™ - gives all round foot comfort and insulation.
• 6mm NITROCELL™ footbed - provides a soft cushioning for an athletic shoe feel. A million microscopic nitrogen bubbles that insulate the wearer from cold surfaces.
• UNDERFOOT CHASSIS™ - give a sure-footed platform.
• HEXZORB™technology - absorbs heel strike shock for daylong comfort.
• SUPERDRI™ lining - is hard wearing, wicks moister away from the wearer’s foot to prevent a sweaty and uncomfortable feel. It is fungus and rot proof so will not smell like cotton-lined boots.
• TRAX™ outsole - superior grip on a variety of surfaces, the tread is designed to work with the action of the foot
• COMFORT RATING: -20ºc to +20ºc.