O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch 185
O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch 185
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In this review of the O'NEILL Men's 21 in Solid Boardshorts the bottom line is simple: these are a dependable pair of swim trunks for men who want a below-the-knee fit with reliable quick-dry performance. The shorts combine Hyperfreak stretch for unrestricted movement with O'NEILL Hyperdry technology to cut dry time, making them a good choice for surfers, swimmers, and active beachgoers. The reviewer found the material comfortable against the skin and noted practical details like a side zip pocket and secure Velcro fly that keep essentials in place during activity.
Key Features
- 21 in Outseam: Provides a below-the-knee cut that balances coverage and mobility for water sports and casual wear.
- Hyperfreak Stretch: The four-way stretch fabric moves with the body for paddling, diving, or beach volleyball without restriction.
- Hyperdry Quick Dry: DWR treatment and Hyperdry technology reduce drying time after swims so the trunks feel lighter sooner.
- Anti-Rash Hyperthread: Construction reduces chafing and irritation during extended wear, keeping the shorts comfortable for long sessions.
- Side Zip Pocket: A secure zip pocket on the leg stores small items safely while active in and out of the water.
- Velcro Fly and Drawstring: Dual closure with spandex gusset in the fly keeps the fit adjustable and secure during movement.
Who It's For
The O'NEILL 21 in boardshorts are aimed at men who want functional swimwear for active water days: surfers who need stretch and quick drying, swimmers who prefer a slightly longer cut, and anyone who appreciates a secure pocket for keys or cards. The fabric and construction suit people who prioritize comfort and mobility over fashion-forward short lengths.
Those who should look elsewhere include buyers seeking a very short inseam or a tailored dressier swim short; also anyone who requires performance fabrics with built-in compression or inner liners may prefer a different style. Sizing can vary for some shoppers, so those between sizes may want to try on or consult the brand fit guide before purchasing.
Pros & Cons
Pros
- Excellent mobility thanks to the Hyperfreak stretch fabric that moves in all directions.
- Quick dry Hyperdry treatment shortens time between swim and shore activities.
- Comfortable anti-rash construction prevents chafing during long wear.
- Practical storage with a secure side zip pocket for small essentials.
Cons
- Sizing is mixed among customers, with some finding the shorts run a bit large, so fit may require trying a size up or down.
Specifications
| Brand | O'NEILL |
| Outseam | 21 in (below the knee) |
| Material | 100% polyester with DWR treatment |
| Fit features | Velcro fly, drawstring closure, spandex fly gusset |
| Velcro patch pocket and side zip pocket | |
| Technologies | Hyperfreak stretch, Hyperdry quick dry, Anti-Rash Hyperthread |
| Imported | Yes |
Our Verdict
The O'NEILL 21 in Solid Boardshorts are a solid value for active men who need a comfortable, quick-drying pair of swim trunks with generous stretch and practical storage. They excel for water sports and all-day beach use, and while sizing can be inconsistent for some, the durable construction and anti-rash comfort make them a worthwhile buy for most buyers.
Frequently Asked Questions
Do these boardshorts dry quickly?
Yes. The Hyperdry DWR treatment is designed to reduce dry time so the shorts feel lighter soon after leaving the water.
Are they comfortable for long sessions in the water?
Yes. The Hyperfreak stretch and Anti-Rash Hyperthread construction minimize chafing and allow unrestricted movement during extended wear.
How is the fit compared to typical sizes?
Fit is generally true to size for many customers, but some report they run slightly large, so consider trying a size down if between sizes.
Editor's Take
The O'NEILL 21 in Solid Boardshorts are a dependable, quick-drying pair of swim trunks with excellent stretch and anti-rash comfort, ideal for active water sports and all-day beach wear.

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