The Grubs Frostline 5.0 Mid Height Boot featuring the TRAK™ sole with Hexzorb™ shock-absorbing technology. This sole has small lugs front & rear to provide good 'push off' grip and a prominent heel for 'braking' grip.

Constructed with Grub's 5.0™ thermal technology, the Frostline 5.0 is the perfect boot for the field and the comfort and warmth will allow you to keep competing in all forms of outdoor leisure & sport.

Features:

Mid-Height giving better slip-on, slip-off performance.
INSU-FOAM ULTRA™ - Containing a polyester fleece lining combined with Grub's HIGHLOFT™ liner for ultimate in warmth and comfort.
5.0 TECHNOLOGY™ - A moisture wicking terry knit liner for ultimate dryness and stretch-ability.
Removable 6mm NITROCELL™ footbed - A nitrogen bubble structure increases the cushioning and insulative properties of the foot bed
SUPER-DRI™ lining
UNDER FOOT CHASSIS™
2mm Natural Rubber Shell
Self Hardening Layers Of Epoxy Impregnated Material
Operate in Temperatures 85 to -5 Fahrenheit
TRAK™ sole featuring Hexzorb™ shock-absorbing technology

Grubs 5.0 Technology

All Grubs footwear uses self-insulating INSU-FOAM ULTRA bootie construction which acts as a neutral medium between the wearer and the outside.

This unique super stretch material is commonly used in deep sea dry suits, and has a 300% stretch rating. It is then covered with a 4 way stretch knitted nylon jersey which as suggested can expand not only in width but also height.

In our 5.0 TECHNOLOGY™ boots the bootie is lined with moisture wicking terry knit, which keeps the wearer dry and has a super stretch to fit most calves. As INSU-FOAM ULTRA™ is a temperature neutral material it will keep the wearers foot comfortable in most conditions for a prolonged period.

TEMPERATURE RANGE 85 to -5 Fahrenheit

Grubs Frostline Mid 5.0 Boot