Grubs Frostline Boots - Black

FROSTLINE 5.0 is insulated and waterproof, with excellent grip, made for all day comfort.

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.