Gill OS2 vs OS3

So, you are on the fence between an OS3 jacket or an OS2 sailing jacket from Gill. If I could give you one piece of buying advice it would be frequency.

How often will you be using your new gear? If it’s regularly then I’d tend to go for the OS2, but if you only use the jacket or trousers a few times in the season then an OS3 is one of the smartest pieces of gear you can buy.

When selecting the top gear for offshore sailing, your choice between these lines should be informed by the type of sailing you’re planning to undertake.

I’ll dive deep into the pros and cons of each based on actual real world use to help you decide whether or not that expense can be justified or not. 

Comparing a Gill OS2 vs OS3 side-by-side

Designed for sailors who take on the sea, whether far from shore or close to land, Gill’s OS2 series goes beyond basic gear. It’s packed with features that deliver superior performance.

Gill’s OS3 gear is built for toughness and top-notch performance under the tough coastal weather. Calling it ‘entry-level’ doesn’t do justice, as it’s far from basic in its capacity to protect you against harsh coastal elements.

Personal Experience

The real test of any sailing gear is its performance under sail. Personally I have worn more versions of the OS3 than the OS2. Both are extremely durable. And in all my years at sea I found Gill to actually outperform other more expensive options from brands like Musto and Helly Hansen.

Key Features and Attributes

Innovative materials take center stage in the construction of the OS3 and OS2 series. These garments are crafted with particular attention to the textile technologies utilized, embodying both the sturdiness needed for the open sea and the comfort required for varied sailing conditions.

Textile Composition:

  • A combination of durable yet lightweight fabrics
  • Optimal balance for coastal sailing and onshore utility


  • Designed for flexibility in movement
  • Suitable for various water-related activities and casual onshore uses

The application of protective coatings is integral to enhancing the functionality of the gear. Enabling mariner’s to face the demanding weather conditions typical in coastal environments.

Water Resistance:

  • Advanced coating technologies employed to repel water
  • Aimed at keeping sailors dry during squalls and waves

Sustainable Durability:

  • Focus on reducing the need for excess protective layers
  • Incorporation of durable zippers with superior sealing properties without relying heavily on Velcro
Cut of GarmentHigher front, lower backEven coverage, focusing on warmth
Fabric WeightHard-wearing, lightweightHeavier, multi-layered
Water ProtectionEffective but suitable for casualEnhanced for extreme exposure
Ease of MovementHighModerate, with emphasis on protection
Zipper DesignAquaGuard, less Velcro neededDesigned with robust storm flaps
VersatilitySuited for a range of activitiesOptimized for prolonged offshore use

My Verdict on Gill OS3 vs OS2

This ultimately boils down to how often you expect to use foul weather gear. If you are planning on doing some ocean-going rodeo then spend the cash and get the OS2. 

It’s a tier below the Mach Daddy OS1 Series but also keeps the cost of a set under 4 figures.

If, however, you are sailing or boating more casually then the OS3 is the way to go. In my opinion, these are the best overall foulies for most mariners.

I’m the founder and chief editor here at Sailing Savvy. I spent a decade working as a professional mariner and currently, I mix those experiences with digital publishing. Welcome, and I hope that we can be the hub you need for safe passage.