O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch Fit 137

In this review of the O'NEILL Men's 21 in Solid Boardshorts the bottom line is simple: these are designed for men who want a below-the-knee swim short that moves with them and dries fast. The reviewer found the combination of Hyperfreak stretch and Hyperdry quick-dry treatment makes these trunks comfortable for activity on and off the water, while the 21 in outseam delivers a modern, just-above-the-knee length. If you value material quality, a clean stripe look and a useful zip pocket, these boardshorts deserve consideration.

Key Features

• 21 in Outseam: A below-the-knee length that provides coverage without restricting leg movement for paddling, beach games or casual wear.
• Hyperfreak Stretch: Four-way stretch fabric that moves in all directions for a more natural range of motion during swimming or active days.
• Hyperdry Quick Dry: Durable water repellent treatment and quick-dry fabric reduce sogginess after surf or pool time so they dry faster between uses.
• Anti-Rash Hyperthread: Construction designed to minimize chafing and discomfort during prolonged activity or when wet against the skin.
• Side Zip Pocket: A secure zip pocket on the side leg keeps small essentials safe while you are active.
• Velcro Fly and Drawstring: Combined velcro fly, spandex gusset and drawstring provide a secure, adjustable fit on the waist.

Who It's For

These boardshorts suit men who want a dependable swim short for surfing, swimming, and general beach life where stretch and quick dry performance matter. The 21 in outseam and stripe design make them a good fit for guys who prefer a contemporary, slightly longer look that still stays comfortable for athletic use.

Those who prefer a lined swim trunk or a much shorter inseam should look elsewhere, since these are unlined and intentionally sized to sit below the knee. Buyers seeking compression or heavy insulation for cold-water use should also consider specialized alternatives.

Pros & Cons

Pros

• Comfortable four-way stretch fabric that adapts to active movements.
• Quick-dry Hyperdry treatment reduces drying time after use in water.
• Secure side zip pocket and reliable closure system for practical beachwear needs.
• Good material quality and color that customers consistently praise.

Cons

• Sizing feedback is mixed; some buyers find them true to size while others report they run a bit large.
• No mesh lining, which some users may miss if they prefer a lined swim short.

Specifications

Brand	O'NEILL
Style	Santa Cruz stripe boardshort
Outseam	21 in
Material	100% polyester with DWR quick-dry treatment
Features	Hyperfreak stretch, Hyperdry, Anti-Rash Hyperthread, side zip 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 need performance-oriented swimwear with stretch and quick-dry properties at a reasonable value. They excel for active beach days and casual water sports, offering good material quality and functional pockets; just check sizing guidance if you prefer a closer fit.

Frequently Asked Questions

Are these boardshorts lined?
No, these are unlined boardshorts; some customers noted there is no mesh lining.

Do they dry quickly after swimming?
Yes, the Hyperdry quick-dry treatment and DWR finish are designed to reduce drying time compared with untreated polyester.

How does sizing run?
Sizing is mixed: many find them true to size but some buyers report they run slightly large, so consider trying your normal waist or sizing down if between sizes.