O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch Fit 300

In this review of the O'NEILL Men's 21 in Solid Boardshorts the bottom line is simple: these are a solid all-purpose swim short for men who want a below-the-knee cut with modern stretch and quick-dry performance. The reviewer found the Hyperfreak stretch fabric moves with the body during active water use, while Hyperdry treatment shortens dry time after a surf or pool session. Fit ran generally true for the model tested, though a few customers report they can run a little large, so sizing attention is advised.

Key Features

• 21 in outseam: Provides a below-the-knee length that works well for board sports and casual poolside wear without riding up.
• Hyperfreak stretch fabric: Offers multi-directional stretch so the shorts move naturally with surfing, paddling, or beach activities.
• Hyperdry technology: DWR quick-dry treatment reduces wet time after exiting the water for greater comfort and faster turnaround between sessions.
• Anti-rash Hyperthread: Smooth construction and fabric choices reduce chafing during extended sessions in or out of the water.
• Secure storage: Velcro patch pocket plus a side zip pocket provide reliable storage for small items while active on the beach or board.
• Functional closure: Velcro fly with spandex fly gusset and drawstring offers a secure, adjustable waist for a better fit in the surf.

Who It's For

These boardshorts are best for men who need a versatile swim short for surfing, paddle sports, or everyday beach use and prefer a 21 in outseam that sits below the knee. The combination of stretch and quick-dry treatment makes them particularly suitable for active users who want movement and reduced drying time between sessions.

Shoppers who prefer a lined swim brief or want a very slim, athletic cut might look elsewhere; these are full boardshorts with a traditional relaxed silhouette. Also, if you prefer a tight, compression-style swim short for competitive swimming, these are not designed for that use.

Pros & Cons

Pros

• Comfortable multi-directional stretch that supports dynamic movement during water sports.
• Quick-dry DWR Hyperdry treatment reduces wet time and improves comfort after exiting the water.
• Thoughtful pockets including a side zip and Velcro leg pocket keep small items secure when active.
• Durable polyester construction and anti-rash thread enhance long-term comfort and wear.

Cons

• Sizing can be mixed across customers; some report they run a little large so trying your usual size or consulting the fit guide is recommended.
• No mesh lining reported by some customers, which may be a drawback for those who prefer additional internal support.

Specifications

Brand	O'NEILL
Outseam	21 in
Material	100% polyester
Key technologies	Hyperfreak stretch, Hyperdry, Hyperthread anti-rash
Pockets	Side zip pocket and Velcro patch pocket
Closure	Velcro fly with spandex gusset and drawstring
Imported	Yes

Our Verdict

The O'NEILL Men's 21 in Solid Boardshorts are a dependable choice for men who want a below-the-knee boardshort with true stretch and quick-dry performance at a reasonable value. They suit surfers and active beachgoers who need mobility and secure pockets, though shoppers should note mixed sizing reports and the lack of a mesh lining if that matters to personal preference.

Frequently Asked Questions

Do these boardshorts dry quickly?
Yes, the Hyperdry DWR treatment speeds drying compared with untreated polyester shorts, making them quicker to dry between uses.

Is there a pocket for small items?
Yes, these include a side zip pocket plus a Velcro patch pocket on the right leg for secure storage while active.

How does sizing run?
Sizing is generally true for many customers, but some report the shorts run slightly large, so consult the size guide or consider trying your usual size first.