OMM - Men's Core Vest


Brand OMM

Ultralight Air-Permeable Primaloft Insulation

A new concept in active insulation, the OMM Core Range is made entirely from PRIMALOFT® ACTIVE ultra-light insulating fabric. Built from a synthetic plume woven through a knitted mesh, Core offers the warmth of a fleece but less-than half the weight. Paired with a shell, the Core is an incredibly effective insulator; but, thanks to near-total air permeability, the lightest breeze can take away that heat. This allows you to keep your Core layer on even when you have warmed up and you can thermoregulate by removing/unzipping your low bulk shell (eg. Sonic windproof at 49g). A true valley to summit piece. Core works wet or dry with incredible wicking properties to ensure you won’t stay wet for long.

Wear the Core Vest as a super warm first layer in the coldest of events and challenges from the OMM to the Spine and the Yukon Ultra.

The Core Vest uses the 75g PRIMALOFT® ACTIVE Insulating Fabric Technology, the lighter version of the 125g PRIMALOFT NEXT fabric used in the Core Jacket.



Continues to insulate even if wet
Flatlock seams positioned away from shoulders
Soft rolled collar
Reflective logo

Technical Details

PRIMALOFT® ACTIVE Insulating Fabric Technology – 75g
Stretch fabric
Weight 72g
Sizes XS / S / M / L / XL

Enjoy! The Let's Run Team.


Economy Delivery

£2.99/FREE*2-5 Working Days (no tracking)
Next Day Delivery£5.50Next Working Day / Tracked / Signed / 
*Economy Delivery is FREE on UK orders over £75

Please note that some items may be 10% more expensive in-store.

We hope you love your purchase but if you ever need to return something to us check out our returns policy below : 

- Please return your unwanted goods to us within 14 days for a refund or exchange.

- Personalised items will not be accepted unless the personalised text is incorrect or if the item is faulty.

  • Returns information can be found on the dispatch note sent with your order.

For more information or to return an item click here

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