With cosy insulation inside and waterproof protection out, the McMurdo Boot keeps girls walking mile after snowy mile in the wintriest of conditions. A HydroSeal™ laminate keeps the boot waterproof, while the outsole features the rugged TNF® Winter Grip™, a rubber compound designed to provide the best possible protection in the wettest and slickest of winter conditions. Insulation meanwhile comes from 200g of Heatseeker Optimal Technology™, a quick-drying full fleece lining and a faux fur collar. There’s a synthetic leather upper and enough support in the construction to keep girls’ feet comfortable all day long no matter what terrain they encounter.
 
Approx Weight : 1/2 pair: 455 g, pair: 910 g *based on Youth 3
 
Last : TNF-008
 
HydrosealTM
Highly durable and weatherproof laminate with a micro-porous, hydrophobic lamination that allows your feet to maintain a comfortable temperature and not retain perspiration.

TNF Winter Grip™ Rubber Outsole Compound
A softer, tackier rubber compound designed specifically to provide ample traction in the wettest and slickest foul weather conditions.

NorthFit™
NorthFit™ outfit the outdoor athlete with the most precise fit between the human foot and a footwear last, as they both relate to the demands of the activity.

AgION™ Antimicrobial
A silver agent woven into the footbed inhibits the growth of odors and disease-causing bacteria.
Heatshield Optimal Technology™ SL Fill
100% polyester hollow core fibers increase thermal efficiency. Variations in fiber thickness provide softness and high loft. Easily compressed and resists breakdown. 

• [upper] Non-hydrolytic synthetic leather upper
  
• [upper] HydroSeal™ waterproof membrane
  
• [upper] Plush faux fur-lined collar
  
• [upper] Fully lined with Dri-Lex® fleece
  
• [upper] 200 grams Heatshield Optimal Technology™ insulation
  
• [upper] Double-adhesive latex, seam-sealed construction
  
• [upper] AgION™ antimicrobial dual-density X-2™ footbed
  
• [bottom]TPR shell bottom with durable TNF Winter Grip™ rubber outsole