O'Neill Hyperfreak Heat Block 21in Boardshort
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An O'Neill Hyperfreak boardshort built for a full day on the water
The O'Neill Hyperfreak Heat Block 21in Boardshort is a go-to performance boardshort for any situation, whether you are surfing or hanging by the pool. Hyperfreak stretch fabrication offers flexibility and comfort, while O'Neill Hyperdry speeds up drying time between sessions.
Materials and construction
This men's boardshort runs a 21 inch outseam and 10.5 inch inseam for a fit that sits just below the knee. The stretch fabric is Hyperfreak with Repreve, a blend of 53% recycled polyester, 37% polyester, and 10% elastane, so the movement comes from the fabric itself rather than a loose cut. O'Neill's Hyperdry DWR finish is treated into the fabric to help it shed water and dry faster once you are out of the surf. Anti-rash hyperthread lines the interior seams to cut down on chafe during long paddle sessions.
Who it is for
- Surfers who want a boardshort that moves with a full paddle and pop-up stroke
- Anyone splitting time between the beach, the boat, and the pool in South Florida
- Shoppers who want a secure place to stash a key or card while in the water
A side zip pocket keeps small essentials secured through a session, and the flex-tie drawcord lets you dial in the waist without a bulky buckle.
Wear, fit, and care
The 21 inch outseam sits just below the knee, a length built for coverage and range of motion in the water rather than a fashion cut. Because the stretch comes from the Repreve blend, expect the fit to move with you through a duck dive or a cutback rather than binding. Rinse in fresh water after ocean or pool use and air dry to protect the DWR finish and the elastane stretch over time.
About O'Neill
O'Neill describes itself as the O'riginal California Surf Lifestyle Brand, in business since 1952, and this Hyperfreak line reflects that surf-first design approach carried through decades of boardshort development.
Why buy it at Island Water Sports
Island Water Sports has outfitted South Florida surfers, skaters, and paddlers since 1978. We stock O'Neill boardshorts because they hold up to daily saltwater use, and our team can help you dial in fit and pairing pieces in person or by phone.
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Specifications
- Brand
- O'Neill
- Product
- O'Neill Hyperfreak Heat Block 21in Boardshort
- Gender
- Male
- Feature
- Men's boardshorts
- Feature
- 21" Outseam/10.5" Inseam - just below the knee fit
- Feature
- Hyperfreak stretch with Repreve®
- Feature
- O'Neill Hyperdry DWR
- Feature
- Anti-rash hyperthread
- Feature
- Side zip pocket
- Feature
- Flex-tie drawcord
- Feature
- 53% Recycled Polyester, 37% Polyester, 10% Elastane
Frequently Asked Questions
- What is the outseam length on this O'Neill Hyperfreak boardshort?
- This style has a 21 inch outseam and 10.5 inch inseam, a fit that sits just below the knee.
- What fabric is the O'Neill Hyperfreak Heat Block made from?
- It uses Hyperfreak stretch with Repreve, a blend of 53% recycled polyester, 37% polyester, and 10% elastane, finished with O'Neill Hyperdry DWR.
- Does this boardshort have a pocket?
- Yes, it has a side zip pocket for securing small items, along with a flex-tie drawcord waist.
- Is this a men's or boy's boardshort?
- This is a men's boardshort in O'Neill's Hyperfreak Heat Block style.
- Does the O'Neill Hyperfreak dry quickly after surfing?
- It is built with O'Neill Hyperdry DWR, which is designed to speed up drying time after time in the water.