Under Armour Multi-Pack Performance Tech Long-Leg Boxer Brief

In this review of the Under Armour Men's Multi-Pack Performance Tech Long-Leg Boxer Brief, the bottom line is straightforward: these are for active men who want a fitted, stay-in-place undershort with soft, breathable fabric that handles sweat. The reviewer found the Performance Tech fabric notably soft and quick-drying, and the 4-way stretch keeps movement unrestricted during running or gym sessions. If you value a longer 9' inseam and a no-roll hem, this pack delivers reliable comfort for daily training and long days on the move.

Key Features

• Lightweight Performance Tech: The fabric is exceptionally soft and breathable so it feels comfortable under shorts or pants during prolonged wear.
• 4-way stretch construction: Allows full-range movement without binding, so it moves with the body during workouts or daily activity.
• No-roll hem & chafe-free seams: The hem stays in place and seams are designed to reduce irritation for running and repeated motion.
• Articulated mesh fly panel & gusset: Adds ventilation and a better fit in the front and crotch area to improve airflow when sweating.
• Performance waistband with wordmark branding: A secure waistband that stays snug without digging in and shows a clean branded look.
• Fitted profile: A streamlined fit that is not too tight or too loose, offering a balance between support and comfort.

Who It's For

These boxer briefs suit men who train regularly, run, or work long days and want underwear that wicks sweat and dries quickly. The 9' inseam and no-roll hem make them especially good for those who prefer longer undershorts to prevent thigh chafing and to keep fabric from riding up.

Those who want ultra-durable long-term wear should consider that customer feedback on durability is mixed; if you need heavyweight, workwear-grade durability rather than performance comfort, a different heavier fabric option might be better.

Pros & Cons

Pros

• Soft, breathable fabric that stays comfortable even during sweaty workouts.
• 4-way stretch and articulated gusset provide excellent mobility and fit.
• No-roll hem and chafe-free seams maintain position and reduce irritation.
• Performance waistband offers a secure fit with clean branding.

Cons

• Durability varies by user, with some reporting seam issues after extended use.
• Some shoppers may find the pack price higher than basic cotton alternatives.

Specifications

Brand	Under Armour
Style	Long-leg boxer brief, 9' inseam
Fit	Fitted (streamlined, not too tight)
Fabric	Performance Tech lightweight, quick-dry
Construction	4-way stretch, no side/back seams
Features	Tagless, no-roll hem, chafe-free seams, mesh fly panel

Our Verdict

These long-leg boxer briefs are a smart choice for men who prioritize comfort, breathability, and a stay-put fit during activity. While some buyers report mixed durability, the combination of Performance Tech fabric, 4-way stretch, and no-roll hem makes them strong value for regular training and everyday wear.

Frequently Asked Questions

Do these boxer briefs wick sweat?
Yes. The Performance Tech fabric is designed to wick moisture and dry quickly, making them suitable for workouts.

Will the 9' inseam prevent riding up?
The longer inseam and no-roll hem help keep the legs in place and reduce chafing during running or extended activity.

Are they true to size?
The fitted cut runs true to size for most wearers; it is streamlined but not overly tight.