CozyMole says:
The Sorel Super Trooper is a serious winter boot for little feet. This boot is temperature rated down to -40 deg C - so that basically means that if your children are wearing these then getting cold feet will not be the reason they come back inside. Fantastic for winter snow play, fully waterproof construction, but with insulation to meet the demands of winter.
Manufacturer's Comments on this Product:
Upper: Waterproof PU backed synthetic textile upper. Seam sealed waterproof construction. Easy adjust ankle and calf elastic lacing.
Insulation: Removeable 9mm ThermoPlus felt inner boot.
Midsole: 2.5mm bonded felt frost plug.
Outsole: Injection moulded waterproof thermal rubber shell with multi-directional lug outsole for enhanced traction.
Sorel footwear is manufactured in US sizes, and the sizes we show here are the equivalent UK sizes which are marked on the box of the products we sell. Please order your UK size. If you require further guidance regarding the conversion please contact us or use the size conversion chart by clicking the 'Sizing Guide' button next to the product image.