O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch Comfort 138

In this review of the O'NEILL Men's 21 in Solid Boardshorts, the bottom line is simple: these are a reliable pair of swim trunks for men who want stretch, quick drying, and useful pockets without extra fuss. Designed for active beach days and casual poolside wear, they pair a below-the-knee 21 in outseam with O'NEILL Hyperfreak stretch for unrestricted movement. The review finds them especially valuable for those who prioritize material quality, comfort, and easy care, while noting sizing can vary between wearers.

Key Features

• 21 in outseam: Provides a below-the-knee fit that most men find balanced between coverage and mobility for surfing or swimming.
• Hyperfreak stretch: The fabric moves with you in all directions so paddling, diving, and running stay comfortable.
• Hyperdry quick-dry: The treated polyester sheds water rapidly so the shorts dry sooner after exiting the water.
• Anti-rash Hyperthread: Construction and fabric choices reduce chafing and improve comfort during long sessions.
• Velcro zip pocket: A side zip patch pocket on the right leg keeps small items secure while active.
• Secure fly and drawstring: Velcro fly with spandex gusset plus drawstring closure ensure a snug, adjustable waist.

Who It's For

These boardshorts suit men who spend time in and around water and need a durable, comfortable swimsuit that dries quickly. Surfers, paddleboarders, and swimmers who value stretch and a secure fit will appreciate the Hyperfreak fabric and Velcro patch pocket for small essentials.

Those who prefer a very short cut, a lined swimsuit, or a tuxedo-style formal swim brief should look elsewhere; these are unlined polyester boardshorts with a classic below-knee silhouette and a focus on movement and quick dry performance.

Pros & Cons

Pros

• Comfortable, stretchy fabric that allows full range of motion during water sports.
• Quick-dry Hyperdry treatment reduces post-swim dampness and speeds turnaround time between uses.
• Thoughtful details like a Velcro zip patch pocket and drawstring waist add practicality.
• Solid build and color options that customers report as good material quality and attractive look.

Cons

• Sizing is mixed among customers; some find the fit true to size while others report they run slightly large.
• No mesh lining was noted by a customer, which may be a drawback for those who prefer lined swim trunks.

Specifications

Brand	O'NEILL
Outseam	21 in
Material	100% polyester with Hyperfreak stretch
Technologies	Hyperdry quick-dry, Anti-rash Hyperthread
Pocket	Velcro zip patch pocket at right leg
Closure	Velcro fly, spandex gusset, drawstring waist
Origin	Imported

Our Verdict

These O'NEILL 21 in boardshorts are a solid choice for active men who need stretch, quick drying, and practical details like a zip patch pocket. They represent good value for beach and water sports use, though buyers should check sizing guidance since fit can run slightly large for some.

Frequently Asked Questions

Are these boardshorts lined?
No, these are unlined 100% polyester boardshorts; one customer specifically noted there is no mesh lining.

Do they dry quickly after swimming?
Yes, the O'NEILL Hyperdry DWR treatment speeds drying time compared with untreated polyester shorts.

Is the fit true to size?
Fit is generally close to standard, but customers report mixed sizing-some find them true to size while others feel they run a bit large, so consult the size guide.