Grubs Boots Frostline 5 -Adult

Description

Grubs Boots Frostline 5 -Adult  

• Most GRUBS® Rubber footwear uses our self-insulating INSU-FOAM ULTRA™bootie construction which acts as a neutral medium between the wearer and the outside.
• The bootie is both waterproof and insulating and exceeds the long-term effectiveness of waterproof membranes and lofted insulations.
• Our boots are waterproof to EN ISO 20344: 2004 5.7 standard.
• We use a super stretch Chloroprene material commonly used in Deep sea dry suits, this material has a 300% stretch and is covered with a 4 way stretch knitted nylon jersey which as suggested can expand not only in width but also height.
• This super stretch means the bootie can stretch up to 150% as a laminate with our SUPER-DRI™, moisture wicking terry knit lining.
•  INSU-FOAM ULTRA™has a fine micro cellular structure, which stops heat transfer through its structure.
• The microscopic bubbles of air are so small that it is waterproof even in 3.5mm thickness.
• INSU-FOAM ULTRA™is super soft and super bouncy, it has a compression set of less than 7% verses 20-25% for other neoprene boots, they remain soft and comfortable for much longer than our competitors.
• Other manufacturers use Styrene Butadiene Rubber, SBR, foams that are stiffer and harden over time, SBR also has a larger and more irregular bubble structure, boots made of this material are harder, making them uncomfortable and prone to leak through the bootie.
• The Bootie is lined with moisture wicking SUPER-DRI™ terry knit, which keeps the wearer dry and has a super 100% stretch to fit most calves.
• As INSU-FOAM ULTRA™ is a temperature Neutral material it will keep the wearers foot comfortable in a range of 85ºF to sub zero for a prolonged period.
• TRAX™ Sole, (DURAPRENE™rubber) outsole with HEXZORB™, which 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.
• COMFORT RATING –  -20ºc to +20ºc.

Sizing

• Please note that our Wellington Boots have a 15mm allowance for wool blend/combination socks.
• With this in mind, we would recommend purchasing the same size you are in your everyday comfortable footwear.
• For half-sizing due to the allowance we would recommend sizing down.