Madshus Active C Classic Boot skiship They are fully windproof and

They are fully windproof and keep you warm in inclement winter weather

Cross Country Skiing

K46 Rossa Special

New fallen snow only +2C to +5C (36F to 41F)

This is what Johannes Høsflot Klæbo says about the Speedmax 3D:

Madshus Active C Classic Boot skiship They are fully windproof andThe Active Classic is a supportive, comfortable ski boot for beginners and recreational skiers. The Active Classic has a higher collar than Madshus's other recreational ski boot models, providing an extra level of ankle support, so you have the confidence to handle downhills with ease. A modified heel construction contributes to holding your foot in place, which is particularly helpful for newer skiers who havent yet built up their ankle strength. A