Under Armour Men's UA Rival Fleece Shorts - Soft, Warm Gym Shorts Open

In this review of the Under Armour Men's UA Rival Fleece Shorts the bottom line is simple: these are comfortable, gym-ready fleece shorts built for everyday wear and colder workouts. They will appeal to men who want a soft, warm short with practical pockets and a reliable waistband. The fabric is an ultra-soft 230g cotton-blend fleece with a brushed inside that adds warmth, and the construction focuses on comfort and function rather than technical compression or a liner.

Key Features

• Ultra-soft fleece: The 230g cotton-blend fleece with a brushed interior delivers a soft hand and extra warmth for cool-weather training or lounging.
• Quick-dry performance: Material wicks sweat and dries quickly so the shorts stay comfortable during sweaty gym sessions or runs.
• Secure fit: Encased elastic waistband with an external drawcord lets you fine-tune the fit for workouts or casual wear.
• Practical pockets: Open hand pockets plus a right-side internal phone pocket and a snap back pocket keep essentials secure and accessible.
• Moderate length: The roughly 10.75 in inseam provides mid-thigh coverage that balances mobility and modesty for most activities.

Who It's For

These shorts are best for men who prioritize comfort and a soft feel over technical performance details. They suit gym-goers, casual athletes, and anyone who wants warm fleece shorts for cool-weather training or weekend lounging.

Shoppers who need a lightweight compression short, integrated liner, or a highly technical running short should look elsewhere; also consider different cuts if you prefer a longer or shorter inseam than the 10.75 in offered here.

Pros & Cons

Pros

• Soft, comfortable fabric that feels premium and is ideal for cooler days.
• Good pocket configuration with a secure snap back pocket and internal phone pocket for daily use.
• Adjustable encased waistband holds position well during movement.
• Material wicks sweat and dries relatively quickly for a cotton-blend fleece.

Cons

• Some customers report mixed durability on colorfastness after washing, so colors may fade faster than expected.
• Fit and material thickness receive mixed feedback, with a few users finding them slightly small or heavier than preferred.

Specifications

Material	230g cotton-blend fleece
Interior	Brushed inside for extra warmth
Waistband	Encased elastic with external drawcord
Pockets	Open hand pockets, right-side internal phone pocket, snap back pocket
Inseam	10.75 in
Liner	No liner

Our Verdict

The Under Armour UA Rival Fleece Shorts are a strong choice for men who want cozy, well-built shorts for gym use and casual wear; the soft 230g fleece, practical pockets, and adjustable waistband deliver good value. If you need a liner or ultra light race-day short, pick a different style, but for warmth, comfort, and everyday function these shorts are hard to beat.

Frequently Asked Questions

Are these shorts true to size?
Most customers find them true to size, but a minority report they run a bit small, so consider sizing up if you prefer a looser fit.

Do the shorts have a liner?
No, these shorts do not include a liner; they are designed as a no-liner fleece short with an internal phone pocket instead.

Will the color hold up after washing?
Durability is mixed: many find the shorts hold up well, but some report faster fading, so follow care instructions and wash inside out to help preserve color.