Milwaukee 502B Fleece Lined Knit Hat Black finish nailer Lock on button enables comfortable continuous Size:11 16" Lock on button enables comfortable continuous operation during periods of prolonged use The GBA18 V40 single layer battery features advancements in design to reduce resistance and increase efficiency Color Finish: Blacks Glove Size: One Size Fits All Gender: Unisex Insulated Uninsulated: Yes Workwear: Yes Apparel Material: Acrylic Clothing Category: Adult Unisex Insulation Material: Acrylic Lined: Yes Safety Features: No Safety Features Material *: Acrylic Weather Resistant: Wind Water Resistant Product Style Fastenal: Insulated Hat Style: Adjustable Trade Name: All Headwear Type: Hat Beanie style construction allows for easy use under a hard hat