Timberland PRO Work Boot
- Boot liner, not a boot
- Certified to -76 degrees Fahrenheit
- Mylar zoned insulation
- At least 50% recycled ReBOTL lining
- Anti-Fatigue polyurethane footbed
- EVA heel cups, elastic goring, heel loops
Last refreshed Sep 28, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A heavyweight insulated liner for Timberland PRO Pac Max boots that adds deep cold protection. It is a replacement or spare liner and does not work as footwear on its own.
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ASIN: B0CDLBDYJ1Category: Hiking Boots
Sizes Available
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Overview
Frozen job sites, ice fishing and winter farm work are where this Timberland PRO liner earns its place inside a Pac Max shell. Mylar zoned insulation traps heat and an anti-fatigue footbed cushions long shifts.
Swapping in a dry, warm liner lets the same boots handle extreme cold day after day. It fits the matching Pac Max shells only, and the listing names no other compatible boots.
Who it's for
Outdoor workers in deep winter get warmth and the ability to rotate liners to dry. Shoppers without Pac Max shells should buy the full boot instead.
Pros and cons
- Certified for extreme cold
- Heel cups reduce slipping
- Moisture-wicking recycled lining
- Heel loops for drying
- Liner only, needs Pac Max shells
- Not water resistant on its own
- Sizing match not explained
Performance notes
Warmth comes from the zoned Mylar insulation reflecting body heat, while the wicking lining moves sweat away to keep insulation dry. The EVA heel cup locks the heel inside the shell.
Where it stands among hiking boots
- #2 most-searched brand and model of the 28 hiking boots lines we track (by search demand, not sales).
From the specs of the 26 hiking boots we list; not a test result.
Specifications
| Brand | max-height: 36px; height: auto; max-width: min(154px, 100%); min-width: 4px; width: auto; object-fit: contain; } Visit the Timberland PRO |
|---|---|
| Dimensions & fit | |
| Boot Shaft Height | Calf high |
| Capacity & performance | |
| Temperature rating | -76 degrees Fahrenheit |
| Construction & materials | |
| Insole Material | Anti-Fatigue polyurethane footbed, EVA heel cup |
| Color | Orange |
| Compatibility & installation | |
| Compatible boots | Timberland PRO Pac Max 10" work boots |
| Other details | |
| Water Resistance Level | Not water resistant |
| Closure Type | Slip-on, elastic goring |
| liningdescription | ReBOTL fabric, at least 50% recycled |
| Shaft Circumference | 10 inches |
| Style Number | TB0A5MR2827 |
| Item Type Name | Boot liner |
| Insulation | Mylar zoned |
Closest rivals on specs
Sorel Hi-Line Lace Men's Boot- Shaft Circumference 10 vs 9 inches (+11%)
HOKA Anacapa Breeze Mid Hiking Boot- Shaft Circumference 10 vs 6 inches (+67%)
Frequently asked questions
Is the Timberland PRO Pac Max liner a boot I can wear alone?
No. It is a heavyweight liner made to go inside Timberland PRO Pac Max 10" work boots.
How cold can the Pac Max liner handle?
The insulation is certified to -76 degrees Fahrenheit.
How do I dry the Pac Max liners?
Heel loops let you pull them out and hang them up to air out.
What is the Pac Max liner made of?
A ReBOTL lining with at least 50% recycled plastic, Mylar insulation and a polyurethane footbed.