Fleece-lined snow pants are a solid choice for mild winter days and casual resort riding. They have a soft, brushed inner layer that adds a touch of warmth without the bulk of traditional insulation. If you typically ski in temperatures around 20°F or warmer and don't spend long stretches sitting on cold chairlifts, they'll likely keep you comfortable all day.
That said, fleece lining provides only mild warmth compared to synthetic or down insulation. If you run cold, ride in bitter conditions, or often find yourself waiting around in the lift line, you may want more protection. Fleece-lined pants also don't offer the layering flexibility of shell pants, which let you adjust warmth with separate base layers.
They're an excellent pick for beginners and casual riders who want something comfortable and easy to wear right out of the box—no extra layers required.