Grub's Ptarmigan 5.0 Walking Boots. Unisex Boots 
 
 The Grub's PTARMIGAN 5.0™ lace up ankle boot is a fantastic for general activities all year round thanks to the 5MM INSUFOAM-ULTRA™ combined with the SUPERDRI™ lining. The 6mm NITROCELL™ footbed is an integral part of the insulation package, but also provides excellent comfort. The PTARMIGAN™ 5.0 is perfect for tackling more adventurous terrain, thanks to the VIBRAM® MULTI-SPORT OUTSOLE that gives you superior grip on all surfaces and on higher grounds.
VIBRAM® MULTI-SPORT OUTSOLE
Is both lightweight, yet self cleaning and provides good grip levels on most surfaces.
5MM INSUFOAM-ULTRA™ NEOPRENE WITH ANKLE HEIGHT RUBBER
For comfort and warmth
UNDERFOOT CHASSIS™
Give a sure footed platform
6mm NITROCELL™ footbed
Provides a soft cushioning for an athletic shoe feel. a million microscopic nitrogen bubbles that insulate the wearer from cold surfaces.
SUPERDRI™ lining
Hard wearing, wicks moister away from the wearer’s foot to prevent a sweaty and uncomfortable feel.
Reinforced toe and ankle
Protects wearers toe box and ankle during daily activities.