O'NEILL HYPERFREAK HEAT BLOCK 19
Pickup currently unavailable at BSS
O'Neill Hyperfreak Heat Block 19 Boardshorts
Built for paddling out with confidence, the Hyperfreak Heat Block 19 is O'Neill's performance boardshort for demanding sessions, and it is the search we see most for this style at Island Water Sports. Hyperfreak 4-Way Stretch moves with every paddle and pop up, while O'Neill Hyperdry speeds up drying time between sets.
Materials and Build
- O'Neill Men's performance boardshort
- 19 inch outseam for a just-above-the-knee fit
- Hyperfreak 4-Way stretch construction
- O'Neill Hyperdry DWR finish
- Flex-tie drawcord and a side zip pocket
- Anti-rash hyperthread lining
- 53% recycled polyester, 37% polyester, 10% elastane
Who It's For
This is a working boardshort for anyone spending real time in South Florida's saltwater, whether that is a morning surf check, a full day on a boat, or paddleboard and skim sessions back to back. The stretch construction and anti-rash lining are built for repeated paddling, not just poolside lounging.
Fit and Care
The 19 inch outseam sits just above the knee, a length made for active water use rather than a beach-lounge cut. The flex-tie drawcord lets you dial in the waist, and the side zip pocket keeps a key or card secure while you paddle. Because these are a stretch performance short, rinse in fresh water after a saltwater session and air dry to protect the elastane and DWR finish over time.
About O'Neill
O'Neill has been building boardshorts and surf gear since 1952, and calls itself the original California surf lifestyle brand. The Hyperfreak line is their performance tier, built with recycled polyester and hyperthread construction rather than a casual, everyday short.
Why Buy From Island Water Sports
Island Water Sports has outfitted South Florida surfers, boaters, and beachgoers since 1978. We stock O'Neill's current Hyperfreak lineup in store and online, and our team can talk you through fit and use before you buy.
Free Shipping, No Minimum for IWS Beach Club Members.
Returns are eligible within 30 days of receiving your order. Return shipping labels are FREE for IWS Beach Club Members. See more
Specifications
- Brand
- O'Neill
- Product
- O'NEILL HYPERFREAK HEAT BLOCK 19
- Gender
- Male
- Feature
- O'Neill Men's performance boardshort
- Feature
- 19" Outseam - Just above the knee fit
- Feature
- Hyperfreak 4-Way stretch
- Feature
- O'Neill Hyperdry DWR
- Feature
- Flex-tie drawcord
- Feature
- Side zip pocket
- Feature
- Anti-rash hyperthread
- Feature
- 53% Recycled Polyester, 37% Polyester, 10% Elastane
Frequently Asked Questions
- What is the outseam length on the O'Neill Hyperfreak Heat Block 19?
- It has a 19 inch outseam, which O'Neill designs to sit just above the knee.
- What fabric is the Hyperfreak Heat Block 19 made from?
- It is made from 53% recycled polyester, 37% polyester, and 10% elastane.
- Does the Hyperfreak Heat Block 19 have pockets?
- Yes, it has a side zip pocket for secure storage while paddling or surfing.
- What makes Hyperfreak boardshorts different from other O'Neill boardshorts?
- Hyperfreak boardshorts use O'Neill's 4-Way Stretch construction for mobility along with the Hyperdry DWR finish for faster drying, paired with an anti-rash hyperthread lining.
- How do you care for O'Neill Hyperfreak boardshorts?
- Rinse them in fresh water after saltwater use and air dry to help the stretch fabric and DWR finish last, since they are built from a recycled polyester and elastane blend.






























































































































