Harborside Performance Vest
This item is temporarily sold out.
Take on any adventure with the Harborside Performance Vest, the perfect blend of functionality, style, and comfort. Designed with a durable shell and lightweight insulation, this vest delivers warmth without the bulk, keeping you comfortable and protected in any weather.
Its versatile design is not only ideal for layering over your favorite long-sleeve shirts, hoodies, or jackets but also perfectly suited for boating and fishing trips. Whether you're hitting the trails, enjoying a day on the water, or heading out for a casual night, the Harborside Performance Vest ensures you look sharp while staying warm.
- Lightweight Insulation: Offers exceptional warmth without restricting movement, ideal for active pursuits like fishing and boating.
- Sleek, Streamlined Fit: Designed for a flattering, modern silhouette that pairs effortlessly with any outfit.
- Secure Zippered Pockets: Safeguard your essentials, such as keys or tackle, while on the move.
- Versatile Layering Piece: Perfect for activewear, casual outings, or outdoor adventures, especially on the water.
- Durable Construction: Made to withstand daily wear and harsh conditions, whether on land or sea.
90% Nylon, 10% Spandex
| S | M | L | XL | XXL | XXXL | |
|---|---|---|---|---|---|---|
| Center Back Length | 25.75" | 26.75" | 27.75" | 28.75" | 30" | 30.75" |
| Half Chest | 19.5" | 20.75" | 22" | 23" | 24.5" | 26.5" |
| Half Waist | 19.25" | 20.25" | 21.625" | 22.75" | 24" | 26" |
| Half Hem | 19.375" | 20.625" | 21.75" | 23" | 24.25" | 26.25" |
| Sleeve Length | 31.5" | 32.5" | 33.75" | 34.5" | 35" | 35.5" |
| M | L | XL | |
|---|---|---|---|
| Body Length | 29" | 30" | 31" |
| Chest Width | 22" | 24" | 26" |
| Sleeve Length | 35.5" | 36.5" | 37.5" |
| S | M | L | XL | XXL | |
|---|---|---|---|---|---|
| Center Back Length | 26.75" | 27.75" | 28.75" | 30" | 30.75" |
| Half Chest | 20.75" | 22" | 23" | 24.5" | 26.5" |
| Half Waist | 20.25" | 21.625" | 22.75" | 24" | 26" |
| Half Hem | 20.625" | 21.75" | 23" | 24.25" | 26.25" |
| Sleeve Length | 32.5" | 33.75" | 34.5" | 35" | 35.5" |
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Length | 18.4" | 20.2" | 22" | 23.7" | 25.5" |
| Half Chest | 13.6" | 14.8" | 15.7" | 17.3" | 18.7" |
| Half Hem | 13.6" | 14.8" | 15.7" | 17.3" | 18.7" |
| Sleeve Length | 18.9" | 20.6" | 22.8" | 24.7" | 25.6" |
| Half Arm | 5.5" | 5.9" | 6.2" | 6.5" | 6.9" |
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| Center Back Length | 22.5" | 23.5" | 24.5" | 25.5" | 26.5" | 27.5" |
| Half Chest | 17" | 18" | 19" | 20" | 21" | 22" |
| Half Hem | 18.75" | 19.75" | 20.75" | 21.75" | 22.75" | 24" |
| Sleeve Length | 21.25" | 22" | 22.75" | 23.25" | 24" | 24.75" |
| S | M | L | XL | XXL | |
|---|---|---|---|---|---|
| Body Length | 26.6" | 28" | 29.4" | 30.75" | 31.6" |
| Chest | 18.25" | 20.25" | 22" | 24" | 26" |
| S | M | L | XL | XXL | |
|---|---|---|---|---|---|
| Body Length | 26.5" | 27" | 27.75" | 28.5" | 29" |
| Chest | 32-34" | 35-36" | 37-38" | 39-41" | 42-44" |
One size fits all adjustable snapback hat
To ensure your performance vest remains in excellent condition for years to come, follow these care instructions:
- Machine Wash on Gentle: Wash your vest in cold water using a gentle cycle. Use a mild detergent free of bleach or fabric softeners to protect the water-resistant shell and insulation.
- Zip It Up: Before washing, close all zippers to prevent snagging and to maintain the shape of the vest.
- Avoid High Heat: Never use hot water or high-temperature settings, as they can damage the materials and reduce the vest's performance.
- Air Dry: Lay the vest flat or hang it to air dry in a well-ventilated area. Avoid direct sunlight or heat sources, which can cause fading or damage to the insulation.
- Spot Clean When Possible: For small stains or dirt, spot clean with a damp cloth and mild soap to minimize wear from frequent machine washing.
- Storage Tips: Store your vest in a cool, dry place. Avoid compressing it for extended periods to maintain the insulation’s loft and effectiveness.
By following these steps, you can preserve the performance, appearance, and durability of your performance vest for seasons to come.
Orders are processed within 1-3 business days. We offer free returns and exchanges within 30 days, as long as items are unworn and not visibily damaged. Final sale items are not eligible for return.
Shipping: We ship anywhere in the U.S. via USPS, with free Ground Advantage shipping on orders over $100. Most orders arrive within 3-5 days. Tracking is available through your confirmation email or Six Knots account.
Returns: Free return shipping is available. Start a return by contacting returns@sixknots.co or using our self-service return module.
For full details, see our Shipping Policy or our Return and Refund Policy.
Featuring our best-selling performance fabric
Experience next-level comfort and performance with our signature lightweight fabric—engineered for all-day wear, on and off the water.
UPF 50+ Sun Protection
Built-in UPF 50+ keeps your skin protected from harmful UV rays.
Moisture-Wicking
Advanced moisture-wicking fabric pulls sweat away and dries fast.
Anti-Microbial
Breathable and odor-resistant, our fabric features anti-microbial tech.
4-Way Stretch
Our 4-way stretch fabric delivers unrestricted movement and comfort.

Don't miss these other must haves
Shop our most-loved gear—trusted by customers for comfort, style, and performance on and off the water.



