Under Armour Men's Rival Fleece Pants - Soft, Warm (Style 89SM)

In this review of the Under Armour Men's Rival Fleece Pants the bottom line is simple: these are comfortable, reliably warm sweatpants best suited to casual wear, gym warm-ups, and lounging. The single biggest reason to buy is the ultra-soft, mid-weight cotton-blend fleece with a brushed interior that delivers noticeable softness and warmth without excessive bulk. The review draws on construction details like the encased elastic waistband, external drawcord, open hand pockets with an internal phone pocket, and a secure snap back pocket to explain why they feel like a practical everyday pant.

Key Features

• Material blend: The 80% cotton and 20% polyester fleece offers a soft handfeel and balanced warmth for year-round casual use.
• Brushed interior: The inside is brushed for extra warmth and a smooth texture that feels comfortable against the skin.
• Waistband: An encased elastic waistband with an external drawcord provides an adjustable, secure fit for active use.
• Pocketing: Open hand pockets plus a right-side internal phone pocket and a secure snap back pocket keep essentials organized and accessible.
• Length and fit: The listed 31.5in inseam gives a mid-to-tall length option that works for lounging and light training when paired with athletic shoes.

Who It's For

These fleece pants are ideal for men who prioritize comfort and softness in a versatile pair of sweatpants. They work well for gym warm-ups, quick errands, travel, and relaxed days at home thanks to the warm brushed interior and practical pocket layout.

Shoppers looking for a tapered, performance-specific running tight, or those needing a heavy-duty winter pant for very cold climates, should consider alternatives; these are mid-weight and intended as everyday fleece rather than a specialized insulating layer.

Pros & Cons

Pros

• Very soft mid-weight fleece that balances warmth and breathability for all-day wear.
• Thoughtful pocket design including an internal phone pocket and a snap back pocket for secure storage.
• Adjustable encased elastic waistband with external drawcord keeps the fit comfortable during activity.
• Good value for money given the fabric quality and construction.

Cons

• Sizing can vary; some customers find the fit runs large so trying before buying or checking fit guidance is advisable.
• Mid-weight fleece is not intended as a substitute for heavy winter outerwear in very cold conditions.

Specifications

Our Verdict

The Under Armour Rival Fleece Pants are a smart pick for anyone who wants a soft, comfortable sweatpant that performs well for lounging, gym prep, and everyday wear. They offer solid construction, useful pocketing, and balanced warmth at a reasonable price, though buyers should note potential variance in sizing when selecting a fit.

Frequently Asked Questions

Are these pants warm enough for winter?
They are mid-weight fleece with a brushed interior suitable for cool weather and layering, but not a replacement for insulated winter outerwear.

Do they have a pocket for a phone?
Yes, there is a right-side internal phone pocket plus open hand pockets and a snap back pocket for secure storage.

How does the fit run?
Many customers praise the fit and comfort, but some report they run too large, so checking sizing or trying them on is recommended.