The 6479 Hi-Vis Freezer Bib Overalls are rated to -50°F // -46°C conditions for up to 5 hours of moderate work activity in freezer cold storage facilities. It delivers warmth, comfort and durability while ensuring high visibility in low light.

For added convenience, the garment features full-length zippers on each leg, allowing for easy on/off without removing work boots. The adjustable dual snap closures at the bottom of the pants ensure a secure fit for varying heights, while the 4-way stretch sides and elastic bib straps offer customizable comfort.

A clearly visible exterior size label allows wearers to instantly recognize and select their ideal overall size. Practical features include oversized front pockets for convenient storage and easy access even when wearing gloves and heavy-duty zippers with storm flaps to seal out wind and rain. The overalls are machine washable for easy and convenient care.

COMPLIANT TO ANSI/ISEA 107-2020

These thermal reflective bibs are a Class E garment with 2” ANSI/ISEA 107-2020 compliant reflective stripes for visibility and safety in low-light conditions.

3M™ THINSULATE™ INSULATION

Designed with 200g of 3M™ Thinsulate™ insulation, this jacket traps heat for warmth in extreme cold, ranging from -10°F to -50°F (-23°C to -46°C). The 3M Thinsulate is 30% thinner in profile compared to standard poly fill and has a higher loft design, making it condense at a much slower rate and offers more thermal retention than standard poly fill—increasing its life integrity. Minimized washing will extend the overall life of the thermal, insulated garment.

CLO RATINGS

Insulation performance is measured by CLO ratings—which is a unit of thermal resistance that indicates insulating ability. The higher the CLO value, the higher the amount of warmth a piece of clothing provides.

To determine temperature ratings, CLO factors, Metabolic Equivalent of Task (MET) and the time or duration of a task are considered. MET levels are categorized into 3 groups:

• “Low” range (0-3 MET) // forklift driver, equipment operator
• “Moderate” range (3-6 MET) // picking & packaging, delivery drivers
• “Vigorous” range (>6 MET) // concrete work, tower climber

Some warehouses and facilities are more manual in nature, leading to higher MET levels, while others rely on automation, resulting in lower MET levels. N-Ferno 6478 Insulated Cooler Jacket has a CLO rating of 2.59 and is rated at a moderate work level in -50°F // -46°C temperatures for up to 5 hours (rated up to a full 8-hour workday at -45°F // -43°C).

Ideal for those working in cold storage facilities, whether in a cooler or freezer room, where dim lighting and forklift activity require enhanced visibility and safety. Also designed for outdoor workers in any industry, from construction to mining and outdoor recreational activities such as hiking or snowmobiling.