Looks like light gray spots from nylon deterioration (probably from storing in a hot attic).

This vintage Arctic Cat Arcticwear snowmobile coat in size XS is a must-have for any motorcycle and snowmobile enthusiast. The bright orange color and visible Arctic Cat logo make it a stylish and functional addition to any wardrobe. The jacket features a full zip closure and two front pockets, perfect for storing your essentials while out for a ride. There is also an inside chest pocket.

Whether you're hitting the trails or just running errands around town, this jacket is sure to keep you warm and comfortable.

Size: women’s extra small

Under arm to under arm measures 18 inches

Waist measures 16 inches.

Bottom measures 19 inches across.

Shoulder to bottom measures 26 inches.

Sleeves measure 24 inches

Condition: good used condition except that the orange nylon has deteriorated so that it looks like it has gray spots. I don’t see gray spots on the sleeves, but they are on the front and back of the jacket The jacket does not look like it was ever worn since there is no stains or pilling on the sleeve, lining or around the neck.