Jet Ski Cover 300D – Heavy-Duty Grey PWC Cover (3 Sizes: S/M/L)

This jet ski cover is designed to protect your PWC (Personal WaterCraft) during times when it’s out of the water – whether parked ashore, on a trailer, or in storage. The material is a high-quality 300 Denier polyester (300D), which is widely recognized in the marine industry for its excellent strength-to-weight ratio. The fabric is further coated on the inside with a PA (polyamide) or PU layer, making the cover completely waterproof and enhancing its UV resistance. This means even with year-round exposure to sun and rain, the cover will retain its integrity and continue to shield your jet ski. The seams are reinforced – double-stitched with heavy-duty thread and are also factory taped or sealed where necessary to prevent any water ingress.

Design & Features: The cover is tailored to fit the typical shape of a jet ski – wide at the front (to cover the bow and sponsons), with enough height to cover the handlebars and seat back, and tapering towards the rear at the transom. An elastic cord is sewn into the entire perimeter of the hem: once you pull the cover over the jet ski, the elastic automatically snugs it under the hull’s edge (like a fitted sheet on a mattress) – this provides a basic grip. Additionally, there are adjustable straps with quick-release buckles that go underneath the belly of the jet ski (or can hook to your trailer frame) – these serve to further secure the cover, which is especially important if the ski is stored outdoors in wind or will be transported. Typically 2 to 3 such straps are provided, which you can tighten to ensure the cover won’t shift or billow.

Sizes: To ensure an optimal fit, the cover comes in three sizes:

• Size S (code 03483-1): Meant for smaller jet skis roughly 2.60 to 2.90 m in length. These could be older two-seater models or modern stand-up jet skis. The width for this size is about 0.73 m at the widest point. If your PWC is a compact sport model, Size S will give a nice snug fit.
• Size M (code 03483-2): Suitable for standard mid-sized 2-3 seater jet skis, about 2.66 to 3.20 m in length. This covers most popular PWCs – e.g., Yamaha VX/GP series, Sea-Doo GTI series, Kawasaki STX models, etc. The width remains around 0.73 m for this size, since many mid-size jets have similar beam widths. Cover M will fit the majority of modern jet skis.
• Size L (code 03483-3): Designed for the largest “touring” and performance models, roughly 3.00 to 3.40 m long. This cover is also made wider – up to ~0.88 m – to accommodate the bulkier hulls of powerful three-seaters (e.g., Sea-Doo GTX/Limited, Yamaha FX Cruiser, Kawasaki Ultra series). If you have a long platform, three-person jet ski, Size L will cover it completely down to the rear bumper.

Advantages: This 300D cover provides all-season protection:

• In summer, it shields the jet ski’s paint and plastics from UV rays, preventing fading and seat cracking.
• In fall and winter, it keeps rain, snow, leaves, and dust off – your jet ski stays clean and ready to go, without the need for extensive spring cleaning.
• Its dust and waterproof qualities protect the jet’s engine and electrical components (especially important for modern 4-strokes with electronics) from moisture and corrosion.
• If the jet ski is on a trailer, the cover is designed for travel – when properly secured, it can remain on the ski during transport, helping to reduce wind drag and preventing road grime from getting into the engine bay. (Always ensure the straps are tight and any excess material is secured before trailering.)

Included with the cover is a storage bag made of the same material. When your jet ski is in use and you don’t need the cover, you can fold it up and stow it in the bag to keep it clean and out of the way.