Yes, the FestiveThread Women's Christmas Sweater is machine washable. The care instructions specify "Machine Wash," though the product details recommend gentle hand wash or dry clean for best results, and washing separately with a laundry bag.

The FestiveThreads Women's Christmas Sweater has a Regular fit type according to the product specifications.

Here's what to expect for sizing:

• Generally true to size - most customers confirm it fits as expected but we usually advise you go for one size bigger than your real size.
• One customer noted: "runs a little big in the shoulders" (5'4", 125lbs customer got a small and found it slightly oversized in shoulders).
• Comfortable fit - described as flattering with a good waistline that doesn't create unflattering bulges.
• Standard length - long enough to pass the "bend test" but not overly long

The sweater is made of 100% acrylic with some stretch, making it comfortable for everyday wear during the holiday season.

The Women's Christmas Sweater provides moderate warmth for winter weather. Here's what customers say about its warmth:

• Lightweight but dense machine knit that keeps you warm indoors and in mild weather
• Soft and very warm fabric according to multiple reviews
• On the thicker side which makes it perfect for Christmas weather

The 100% acrylic material provides good insulation while remaining breathable. It's described as "cozy" and perfect for holiday gatherings, but you may need to layer it with a coat for outdoor activities in colder temperatures.