The name "Arctic Fleece" sounds inherently warm, but it is not a standard textile material term—rather, it is more of a commercial brand name or marketing label. In essence, it is typically a high-quality cashmere-like fabric or ultra-fine fiber fleece.  
You can understand it this way: "Arctic Fleece" is like a "brand" for fabrics, promising an extremely warm and soft experience similar to the coziness one might associate with the Arctic. Its key characteristics are as follows:  
1. Material  
It has an extremely high fleece density, mimicking or even surpassing the texture and warmth of natural cashmere.  
2. Core Selling Points  
Exceptional Warmth: The high-density fleece traps large amounts of air, forming an efficient thermal insulation layer. Its outstanding warmth is the inspiration behind the name "Arctic Fleece".  
Superior Softness: The ultra-fine fibers deliver a delicate, smooth texture and strong skin-friendliness, aiming to provide a comfortable experience akin to "being wrapped in a cloud".  
Lightweight & Breathable: While ensuring strong warmth, the fabric itself is lightweight and offers better breathability than ordinary fleece fabrics (e.g., coral fleece).  
Minimal Lint Shedding: High-quality manufacturing processes ensure the fleece is firmly attached and unlikely to shed.  
Main Uses  
Bedding: This is its most common use, such as Arctic Fleece 4-piece sheet sets and blankets. Using Arctic Fleece bedding in winter eliminates the cold feeling when getting into bed.  
Loungewear & Pajamas: Arctic Fleece loungewear and pajamas are warm and fit closely to the body for comfort. 

Blankets: Including sofa throws, nap blankets, and outer fabrics for electric blankets.  
Underwear: Some thermal underwear uses this soft, warm fleece fabric as the inner lining.  
Its greatest advantages are its exceptional warmth, soft texture, and light weight, making it a cost-effective thermal material for winter.