O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch Comfort 215

In this review the O'NEILL Men's 21 in Solid Boardshorts are evaluated for men who want a below-the-knee swim short that balances active performance and everyday beachwear. The single biggest reason to buy is the combination of quick dry Hyperdry fabric with Hyperfreak stretch, which moves with the body and dries rapidly after water activity. The reviewer found these shorts comfortable for long wear, useful pockets for small items, and a clean modern look that suits swimming, surfing and casual summer use.

Key Features

• 21 in outseam: A below-the-knee length that provides coverage without restricting movement, making them versatile for both water and shore activities.
• Hyperfreak stretch: Four-way stretch fabric lets the shorts move with you during swimming or paddling and reduces pull at the seams.
• Hyperdry quick dry: DWR treatment and quick-dry polyester shorten dry time so the shorts feel lighter soon after exiting the water.
• Anti-rash Hyperthread: Soft, flat seams and thoughtful construction reduce chafing for extended wear and active sessions.
• Secure storage: A side zip pocket plus a Velcro patch pocket provide safe, easy access to small items when on the beach or board.
• Functional fly and fit: Velcro fly with spandex gusset and drawstring keeps the waist adjustable and secure during activity.

Who It's For

These boardshorts are best for men who spend time in the ocean, surf, or enjoy general watersports and want a pair that dries quickly and allows full range of motion thanks to stretch fabric. They also suit anyone who prefers a longer, below-knee cut with practical pockets for a phone or keys.

They may be less ideal for those who want a very short or tailored swim trunk, or for swimmers who prefer compression liners rather than a traditional boardshort cut; buyers seeking a performance suit for lap swimming should look elsewhere.

Pros & Cons

Pros

• Comfortable fit with four-way stretch that moves in all directions.
• Quick dry Hyperdry treatment reduces damp heaviness after swimming.
• Multiple pockets including a side zip for secure storage.
• Anti-rash construction that minimizes chafing during long wear.

Cons

• Sizing can be mixed; some customers find them true to size while others report a roomier fit.
• 100% polyester construction may feel less breathable in very hot conditions compared with lighter woven blends.

Specifications

Brand	O'NEILL
Outseam	21 in
Material	100% polyester with DWR Hyperdry treatment
Stretch	Hyperfreak four-way stretch
Pockets	Side zip pocket and Velcro patch pocket
Closure	Velcro fly with spandex gusset and drawstring
Imported	Yes

Our Verdict

The O'NEILL 21 in boardshorts are a solid choice for men who want comfortable, durable swim trunks that dry quickly and move with the body. For most beachgoers and watersport participants they represent good value thanks to functional pockets, anti-rash construction and dependable stretch; check sizing notes before purchase if you prefer a very fitted waist.

Frequently Asked Questions

Are these boardshorts true to size?
Customers report mixed sizing; many find them true to size but some say they run slightly big, so consult the size guide if you are between sizes.

Do they dry quickly after swimming?
Yes, the Hyperdry DWR treatment and polyester fabric speed up dry time compared with untreated cotton-style shorts.

Do these have a liner?
These are traditional boardshorts with a spandex fly gusset rather than a full compression liner, designed for mobility and quick drying.