To improve your shopping experience today and in the future, this site uses cookies.
I Accept Cookies
Discover the OMM Core Fleece Jacket: ultra-lightweight PrimaLoft® ACTIVE insulation delivering fleece-level warmth at half the weight. Perfect for high-output mountain performance.
Discover the OMM Core Fleece Jacket: ultra-lightweight PrimaLoft® ACTIVE insulation delivering fleece-level warmth at half the weight. Perfect for high-output mountain performance.
OMM

OMM Mens Core Fleece Jacket in Black

£120.00
Earn
in Customer Rewards when you buy this item today
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

OMM Mens Core Fleece Jacket in Black

Season:AW26

Brand:OMM

Code:40003057

A new concept in active insulation, the OMM Core Fleece Jacket delivers maximum warmth with a fraction of the weight. Built entirely from PrimaLoft® ACTIVE fabric—a synthetic plume woven through a breathable knitted mesh—it gives you the thermal performance of a classic fleece at less than half the bulk.

Designed as an ultra-adaptable valley-to-summit mid-layer, the Core Jacket features near-total air permeability. When paired with a windproof or waterproof outer shell, it traps heat effectively to keep you warm on cold ridge lines. Unzip or strip off your shell, and the lightweight air-permeable weave allows even a gentle breeze to vent heat instantly, keeping you comfortable without needing to constantly strip off layers during high-output activity.

Whether worn wet or dry, its exceptional moisture-wicking properties keep you dry and comfortable during fast-paced fell runs, mountain marathons, or rest days.

Key Features

  • Active Thermoregulation: Highly air-permeable fabric allows rapid heat dumping when unzipped or worn without a shell, letting you stay on the move without overheating.

  • Exceptional Warmth-to-Weight Ratio: Provides the thermal insulation of a midweight fleece at less than half the weight.

  • Rapid Moisture Wicking: Dries quickly and continues to insulate effectively even when wet.

  • Full-Length Zip: Easy temperature regulation on the go and smooth layering.

  • Handwarmer Pockets: Integrated zipper pockets to keep your essentials secure and hands warm.

Specifications

  • Fabric: PrimaLoft® ACTIVE 125g/m² Insulating Fabric Technology

  • Weight: 195g (Leanweight)

  • Fit: Fitted

  • Layer Type: Mid Layer

  • Best Uses: Fell running, trail running, mountain marathons, active mountain wear

Sizing Information
Professional Opinion
Product Reviews
Write a review
0 As rated by 0 customers

Write a review for OMM Mens Core Fleece Jacket in Black

Your name
Your email address
How would you rate it?
Would you recommend this product?
Let others know your opinion
Submit Review Close
Home Trail Running Clothing OMM Midlayer