Men's 21 in Boardshorts with Quick Dry Stretch - Water Resistant
Men's 21 in Boardshorts with Quick Dry Stretch - Water Resistant
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Our review of these men's 21 in boardshorts finds they are best for swimmers and beachgoers who want a below-the-knee fit with performance fabric that dries fast. The single biggest reason to buy is the combination of Hyperfreak stretch and Hyperdry technology, which lets the shorts move with you in all directions while shedding water quickly after a surf session or pool lap. The review covers fit, fabric, pockets and comfort so you can decide if these trunks suit your regular swim and active days.
Key Features
- 21 in outseam: A below-the-knee length that provides extra coverage for surfing and casual wear without feeling overly long.
- Hyperfreak stretch: Four-way stretch fabric that moves with the body for unrestricted paddling, swimming and beach sports.
- Hyperdry quick dry: Durable water repellent treatment speeds dry time so trunks are ready sooner after exiting the water.
- Anti-rash Hyperthread: Smooth internal construction and fabric reduce chafing and increase comfort during long sessions.
- Side zip pocket: Secure storage for small essentials like keys or cards while on the go.
- Velcro fly and drawstring: Dual closure keeps the fit adjustable and secure during active use.
Who It's For
These boardshorts are ideal for active men who surf, swim, or play beach sports and want a reliable pair that balances mobility and coverage. The stretch fabric and quick-dry finish suit anyone who moves a lot in the water and prefers trunks that transition easily to shore activities.
Men seeking a very short swim brief or those who prefer heavy-lined trunks for cold water should look elsewhere; these are lightweight polyester boardshorts designed for mobility and warm-weather use. If you need a strict size precision fit, be aware that customer feedback on sizing is mixed.
Pros & Cons
Pros
- Comfortable four-way stretch delivers unrestricted movement for active water use.
- Quick dry DWR treatment and Hyperdry technology reduce time spent in damp shorts after swimming.
- Secure side zip pocket and drawstring/velcro closures keep essentials safe during activity.
- Anti-rash construction adds comfort for long wear without chafing.
Cons
- Sizing can run slightly large for some wearers, so checking the size guide or trying on is recommended.
- Fixed 21 in outseam may be longer than customers who prefer shorter swim trunks.
Specifications
| Brand | O'NEILL |
| Outseam | 21 in |
| Material | 100% polyester |
| Technologies | Hyperfreak stretch, Hyperdry, Hyperthread anti-rash |
| Pockets | Right leg velcro patch pocket and side zip pocket |
| Closure | Velcro fly, spandex gusset and drawstring |
Our Verdict
These 21 in boardshorts are a solid choice for men who prioritize mobility and quick-dry performance in warm-weather water activities. With stretch fabric, anti-rash details and useful pockets they deliver good value for regular beach and surf use, though buyers should confirm sizing if they prefer a snug fit.
Frequently Asked Questions
Are these boardshorts quick drying?
Yes. They use Hyperdry technology and a DWR treatment for faster dry time compared with standard polyester trunks.
Do they have pockets for keys?
Yes. There is a side zip pocket plus a velcro patch pocket on the right leg for secure small-item storage.
How does the fit run?
Fit is generally true to the intended 21 in outseam below-the-knee style, but customer reports are mixed on size with some finding them slightly large, so consult the size guide.
Editor's Take
These 21 in boardshorts offer strong value for active men who need quick-dry performance and four-way stretch; they are comfortable, durable, and include useful pockets, though sizing can run slightly large.

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