Men's Kinetic Fit™ Advanced Footbed Wide Width

Intent on using them in the winter

The original wasn't wool. Wool is nicer than the original. And the original was worn out and needed to be replaced. My only concern is that wool can't be too warm in warm weather (at the end of a long hike).

I like this insole, especially for the price. Here's info from the box that I wish Merrell would have put on the web site - it would make selecting the right insole so much easier! Kinetic Fit: (Diagram on top of the box) Base: Flexible support (no reinforcement shown) Tri: Light support (reinforced in arch area) Advanced: Medium support (reinforced in heel) Elite: Maximum support (reinforced ball of foot, arch, heel) The "white" color is a merino wool liner for "warm, wicking comfort." I like merino wool for its breathability, warm or cold. Advanced model: "Resin-enforced partial arch and heel cap provide flexible support to he arch and increased stability in the heel." "Impact-absorbing heel pod for all day comfort." Baseline features, all kinetic fit insoles, per the packaging: -intuitive shape -recycled EVA -advanced heel lock -absolute arch coverage -organic odor control I would buy these insoles again.