O'NEILL Men's 21 in Solid Boardshorts - Quick Dry Stretch (Style YCMT)

Our review of the O'NEILL Men's 21 in Solid Boardshorts finds them to be a solid choice for men who want comfortable, above-knee swim trunks that perform on the beach and during active water sports. The single biggest reason to buy is the combination of Hyperfreak Stretch mobility and Hyperdry quick dry treatment, which together deliver unrestricted movement and fast drying after a surf or pool session. Constructed from 100% polyester with a practical 21 in outseam, these shorts balance everyday wearability with surf-ready features.

Key Features

• 21 in outseam: The below-the-knee length offers modest coverage while staying mobile for paddling and casual wear.
• Hyperfreak Stretch fabric: Four-way stretch moves with the body so the trunks do not restrict motion during dynamic activities.
• Hyperdry technology: Durable water-repellent treatment speeds dry time so the shorts transition comfortably from water to shore.
• Anti-Rash Hyperthread: Smooth construction and fabric reduce chafing for longer sessions in and out of the water.
• Functional storage: A side zip pocket and a velcro patch pocket at the right leg give secure options for small items.
• Secure fit: Velcro fly with a spandex fly gusset and drawstring closure keep the waist adjustable and comfortable.

Who It's For

These boardshorts suit men who need a versatile swim trunk that works for surfing, snorkeling, beach days, or poolside lounging. The quick dry finish and stretch fabric make them a good pick for people who move a lot and want a short that recovers quickly between dips without dragging water into the car or hotel.

Those who want a lined swim brief or an ultra-slim, fashion-forward short may look elsewhere; these are designed for active use and comfort rather than being a tailored streetwear piece. Men preferring a very short in-seam or a fully lined brief-style suit should consider alternate styles.

Pros & Cons

Pros

• Comfortable four-way stretch fabric that supports a wide range of motion.
• Quick-dry DWR treatment that reduces water retention after swimming.
• Good practical storage with a side zip pocket and velcro patch pocket.
• Durable construction and anti-rash stitching for longer wear during activities.

Cons

• Sizing feedback is mixed among customers, with some reporting they run slightly large, so trying on or checking the size guide is advised.
• There is no mesh lining noted, which some buyers prefer for additional support and airflow.

Specifications

Brand	O'NEILL
Outseam	21 in
Material	100% polyester
Technologies	Hyperfreak Stretch, Hyperdry, Hyperthread
Pockets	Side zip pocket, velcro patch pocket
Closure	Velcro fly with spandex fly gusset and drawstring
Imported	Yes

Our Verdict

The O'NEILL 21 in Solid Boardshorts are a dependable, activity-focused swim short that deliver stretch, quick drying, and useful pockets at a reasonable value. They are ideal for men who take part in water sports and want functional comfort; just verify sizing if you prefer a snugger fit.

Frequently Asked Questions

Are these boardshorts lined?
No mesh lining is specified in the product details, so expect an unlined swim trunk construction.

How long are these shorts?
The outseam length is 21 in, which typically falls just below the knee on average-height men.

Do they dry quickly after swimming?
Yes, the Hyperdry DWR treatment helps them shed water and dry faster than untreated polyester shorts.