What does a sock liner do?
It may move friction away from skin and assist moisture management.
Can two pairs worsen blisters?
Yes, through bunching, heat or excess tightness.
Should both layers be thick?
Usually no; the liner is normally thin.
Can two socks fix loose boots?
They cannot correct an oversized shell or loose heel pocket.
Put the advice into practice
Wear one sock on one foot and two layers on the other for thirty minutes, then switch and compare heat, wrinkles, movement and hot spots.
Limits and cautions
Two thick layers can bunch and crowd a correct toe box.
Two socks help only when they reduce skin friction without crowding the boot.
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