O'NEILL 21 in Solid Boardshorts - Quick Dry Stretch Swim Trunks Men's

In this review of the O'NEILL Men's 21 in Solid Boardshorts the bottom line is simple: these are practical, comfortable swim trunks for anyone who wants a below-the-knee fit with quick drying performance. Built with O'NEILL Hyperfreak stretch and Hyperdry technology, the shorts move with you during active beach days and dry rapidly afterward. The construction and material quality stand out in everyday wear, and the included side zip pocket and durable fly make them a reliable choice for surfers, swimmers, or anyone who wants a no-nonsense boardshort.

Key Features

• 21 in outseam: Provides a below-the-knee fit that sits just above the knee for most wearers and offers extra coverage for active water sports.
• Hyperfreak stretch: Fabric stretches in all directions so the shorts move naturally during paddling, swimming, and walking.
• Hyperdry quick-dry: DWR treatment and Hyperdry technology shrink drying time so the shorts shed water fast after a session.
• Anti-rash Hyperthread: Smooth construction that reduces chafing during prolonged wear in and out of the water.
• Side zip pocket: Secure storage for small items like keys or a card when you step off the beach.
• Velcro fly with drawstring: Traditional boardshort closure with a spandex gusset for comfort and a secure fit.

Who It's For

The O'NEILL 21 in boardshorts suit surfers, swimmers, and active beachgoers who want a below-the-knee length and fabric that stretches with movement. The combination of Hyperfreak stretch and Hyperdry makes them particularly good for anyone who alternates between water activities and casual wear, since they dry quickly and remain comfortable on land.

Those who prefer a lined swim brief or who need a very snug, athletic racing fit should look elsewhere, and shoppers who rely on exact sizing should be aware that customer feedback on size is mixed - some find them true to size, others note they run a bit large.

Pros & Cons

Pros

• Comfortable stretch fabric that moves with the body during active use.
• Quick-dry DWR and Hyperdry treatment reduce post-swim dampness and drying time.
• Secure side zip pocket and reliable Velcro fly with drawstring for everyday convenience.
• Durable construction and clean striped styling that holds up to repeated wear.

Cons

• Sizing is reported as mixed by customers, so trying a size or checking the fit guide is recommended.
• Some buyers note there is no mesh lining, which may be a drawback for those used to lined swim trunks.

Specifications

Brand	O'NEILL
Outseam	21 in
Material	100% polyester
Technologies	Hyperfreak stretch; Hyperdry; Anti-rash Hyperthread
Pocket	Right leg Velcro patch and side zip pocket
Closure	Velcro fly with spandex gusset and drawstring
Origin	Imported

Our Verdict

The O'NEILL 21 in Solid Boardshorts are a solid choice for men who want a durable, quick-drying boardshort with stretch and secure storage at a reasonable value. They excel for active beach use and casual wear, offering comfort and performance, though shoppers should confirm sizing because fits can vary slightly between customers.

Frequently Asked Questions

Are these fully lined?
These boardshorts do not include a full mesh lining; they rely on a spandex gusset in the fly for comfort.

How long is the outseam?
The outseam is 21 in, giving a below-the-knee length on most wearers.

Do they dry quickly after swimming?
Yes, the Hyperdry technology and DWR treatment are designed to accelerate drying compared with untreated polyester.