O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch Clothing
O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch Clothing
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Our review of the O'NEILL Men's 21 in Solid Boardshorts finds them best suited for men who want a reliable, comfortable pair of swim trunks that work for both surf sessions and pool days. The single biggest reason to buy is the combination of Hyperfreak stretch and Hyperdry quick-dry technology, which delivers unrestricted movement and rapid drying so the shorts transition easily from water to land. Built with a below-the-knee 21 in outseam and practical storage, these boardshorts balance performance features with everyday comfort.
Key Features
- 21 in outseam: The below-the-knee length gives fuller coverage while remaining suitable for active water sports and casual wear.
- Hyperfreak stretch: Fabric stretches in all directions so these shorts move with you during paddling, swimming, or bending.
- Hyperdry technology: Durable water repellent treatment and quick-dry polyester reduce damp time after exiting the water.
- Anti-rash Hyperthread: Seams and fabric are designed for comfort during long wear to help prevent chafing in wet conditions.
- Side zip pocket: A velcro patch pocket at the right leg plus a zip pocket provide secure storage for small items on the beach.
- Functional closure: Velcro fly with spandex gusset and drawstring keeps the fit adjustable and secure in the water.
Who It's For
These boardshorts are aimed at men who want a technical swim trunk that still looks good off the board. Surfers and swimmers who value stretch fabric and quick dry performance will appreciate the mobility and reduced drying time. The length and classic stripe styling suit those who prefer more coverage than short swim trunks.
Shoppers who prefer a lined trunk or expect compression-style swim briefs should look elsewhere, as this style is a traditional boardshort without a mesh lining. Also, buyers who need a very tailored, slim fit should note that sizing has mixed feedback and some find the shorts run slightly large.
Pros & Cons
Pros
- Comfortable all-direction stretch that supports active movement in and out of the water.
- Quick-dry DWR treatment and Hyperdry finish reduce wet time and improve post-swim comfort.
- Practical storage with a velcro patch pocket and a side zip pocket for secure items.
- Durable construction and anti-rash details that enhance comfort during extended use.
Cons
- Sizing is mixed among customers, so some may need to size down for a closer fit.
- No mesh lining, which may be a drawback for those who prefer lined swim trunks.
Specifications
| Brand | O'NEILL |
| Outseam length | 21 in |
| Material | 100% polyester with DWR treatment |
| Closure | Velcro fly with spandex gusset and drawstring |
| Pockets | Velcro patch pocket at right leg and side zip pocket |
| Technologies | Hyperfreak stretch, Hyperdry quick-dry, Anti-rash Hyperthread |
| Imported | Yes |
Our Verdict
The O'NEILL Men's 21 in Solid Boardshorts are a solid choice for anyone who needs a versatile, performance-oriented swim trunk that dries fast and moves with the body. They offer useful pockets, anti-rash comfort, and a comfortable below-the-knee length, making them good value for active swimmers and surfers who prioritize mobility and quick drying over lining or a very snug fit.
Frequently Asked Questions
Do these boardshorts dry quickly?
Yes. The Hyperdry technology and DWR finish speed up drying compared with untreated polyester, so they dry faster after water use.
Are they true to size?
Sizing is mixed in customer feedback; some find them true to size while others report they run a bit large, so consider trying a size down if you prefer a snugger fit.
Do they have a mesh lining?
No, these are traditional boardshorts without a mesh lining, designed for mobility and comfort with an anti-rash Hyperthread treatment.
Editor's Take
The O'NEILL Men's 21 in Solid Boardshorts are a versatile, quick-drying option with excellent stretch and practical pockets, ideal for active swimmers and surfers who prefer below-the-knee coverage.

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