Refrigiwear Men's Water-Resistant Insulated Iron-Tuff Siberian Workwear Jacket with Soft Fleece Collar The ultimate classic Iron-Tuff Siberian helps you stay warm in even the most extreme winter conditions with 11.25 oz. "RefrigiFill" insulation that can keep you comfortable down to -50 degrees F Keep out the elements for added comfort with a water-repellent, wind-tight outershell, heavy-duty knit cuffs, and soft fleece collar Highly durable for many years of use with tear- and abrasion resistant denier nylon outershell, reinforced brass rivets and bound seams that also help seal out drafts Plenty of storage and hand warmth with 2 oversized, insulated front pocket, convenient chest pocket for extra storage and a zippered pocket on the sleeve Heavy-duty knit cuffs, a soft fleece collar and button-up wind flap over the zipper help you seal out the cold