Grubs Frostline 5.0 Neoprene Wellington Boot Moss Green


The Grub’s Frostline boots are the ultimate footwear in both comfort and grip. A high performance, field boot constructed with Insu-Foam technology which is super soft and because of its micro cellular structure, this stops heat from escaping out allowing the user to stay dry and comfortable for longer. The Trax sole with durapene offers great traction, this boot is ideal for most work or leisure activities.


The Frostline 5.0 combines Grub’s unique Insu-Foam Ultra technology with advanced 5.0 thermal engineering. Featuring the Trax sole with Hexzorb Duraprene technology. An ideal boot for most work or leisure activities.


  • Super-Dri lining
  • Under Foot Chassis
  • Nitrocel insulating and cushioning foot-bed.

Supreme Comfort

All Grub’s footwear use our self-insulating INSU-FOAM ULTRA bootie construction which is super soft and super bouncy, with a compression set of less than 7% verses 20-25% for other neoprene boots, so they remain soft and comfortable for much longer. INSU-FOAM ULTRA has a fine micro cellular structure, which stops heat transfer through its structure. The bootie exceeds the long-term effectiveness of waterproof membranes and lofted insulations, such as GORE-TEX and 3M Thinsulate.

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. This means the bootie can stretch up to 150% as a laminate with our super dry, moisture wicking terry knit lining.


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