The socks already in your drawer may be the wrong thickness for a particular pair of boots. The Mens Merino Wool Socks Thermal Warm Hiking Socks for Winter is a winter-hiking option to compare, but I'd judge it inside the footwear rather than choose from the warm wording alone.

Merino wool is identified in the title. I'd read the complete composition and care instructions to understand the actual fabric blend and how it will fit into a regular laundry routine.

The Starting Details

Men's sizing description.
Merino-wool fabric wording.
Winter and hiking positioning.

Check the fiber-percentage label and where the sock is cushioned. A merino blend with heavier padding can fit very differently in a close boot from a thinner sock using the same general fiber description.

Fit Can Outweigh Thickness

Try walking in the intended footwear and pay attention to the toe space, heel position, and cuff. More material isn't a useful upgrade if it makes the boot feel crowded or creates a fit problem that wasn't there before.

I also like to think about how the socks will be used across a day. Walking in one pair and having a dry pair available afterward can be more sensible than expecting one thick pair to remain ideal through every activity.

My View of the Purchase

I'd compare these when I want a Merino-based winter sock and the size chart and thickness suit the boots I own. I'd be more cautious if the listing leaves the blend or dimensions unclear and those details are central to the decision.

For very specific footwear or activity needs, choose a sock with the documented construction that matches them. The right reason to buy this pair is a good fabric-and-fit match, not the assumption that a thermal label automatically improves every boot setup.