O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch Fit Shoes
O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch Fit Shoes
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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, below-the-knee swim trunk that moves with activity and dries quickly. The single biggest reason to buy is the combination of Hyperfreak Stretch fabric for unrestricted movement and Hyperdry treatment that cuts down wait time between water and land. These feel like a purposeful boardshort rather than a casual swim short, with practical details such as a right-leg zip pocket and a Velcro patch pocket for small items.
Key Features
- 21 in outseam: A below-the-knee fit that provides coverage for paddling, surfing or general beach wear without restricting the leg.
- Hyperfreak Stretch fabric: Four-way stretch construction that follows your movement in every direction for active water sports and beach games.
- Hyperdry quick-dry treatment: Durable water-repellent finish that speeds drying after swims so you stay comfortable off the sand.
- Anti-rash Hyperthread: Smooth stitching and fabric choices intended to reduce chafing during extended activity.
- Secure storage: A side zip pocket plus a Velcro patch pocket on the right leg keep keys, cards or small items stashed while you move.
- Functional closure: Velcro fly with spandex gusset and drawstring offers an adjustable, secure waist for active use.
Who It's For
These boardshorts are aimed at active men who need a true swim/training short that performs in the water and dries quickly on land. Surfers, paddleboarders, and anyone who prefers a below-the-knee cut will appreciate the 21 in outseam and stretch fabric.
Men who want a lined swim trunk or a fashion-forward leisure short with extra tailoring might look elsewhere; these are designed primarily for performance and practicality rather than plush lining or a tailored dressy look.
Pros & Cons
Pros
- Comfortable stretch fabric that allows full range of motion for water sports.
- Quick-dry Hyperdry finish reduces damp time after swimming.
- Practical storage with a zip pocket and Velcro patch pocket for secure carry.
- Durable construction and anti-rash details make them suitable for extended use.
Cons
- Not all reviewers agreed on sizing; some find them true to size while others report a roomier fit.
- No mesh lining was noted by customers, which may be a drawback for those who prefer lined trunks.
Specifications
| Brand | O'NEILL |
| Outseam | 21 in |
| Material | 100% polyester |
| Closure | Velcro fly with spandex gusset and drawstring |
| Pockets | Side zip pocket and right leg Velcro patch pocket |
| Technologies | Hyperfreak Stretch, Hyperdry, Hyperthread anti-rash |
| Imported | Yes |
Our Verdict
The O'NEILL 21 in Solid Boardshorts are a solid choice for men who prioritize performance, quick drying and unrestricted movement. With practical pockets and anti-rash construction, they deliver good value for active beach use; just check sizing if you prefer a tailored fit or want a mesh-lined trunk.
Frequently Asked Questions
Are these boardshorts lined?
No, customers note these have no mesh lining, which contributes to lighter weight and quicker drying.
Do they dry quickly?
Yes, the Hyperdry DWR treatment is designed to speed drying after swims and reduce water retention.
How does the fit run?
Fit reports are mixed; many find the shorts true to size with a below-the-knee 21 in outseam, while some customers feel they run a bit roomier.
Editor's Take
The O'NEILL 21 in Solid Boardshorts are a strong option for active men who want a below-the-knee, quick-drying short with stretch mobility and practical pockets; check sizing if you prefer a lined or tailored fit.

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