the OMM Core Hoodie

the OMM Core Hoodie

See our entire range from the OMM here!

The OMM Core Hoodie is a groundbreaking midlayer for high-intensity activity , developed for mountains, mountains and long runs where traditional fleece often gets too warm. It is part of OMM's unique Core series , which is built entirely on PrimaLoft® Active , an advanced synthetic material that provides the warmth of fleece - at less than half the weight and significantly better ventilation .

The insulation consists of synthetic plumes woven directly through an open, stretchy mesh material . This construction creates large air pockets that effectively trap body heat, while the almost total air permeability means that excess heat can be quickly vented away when the pace increases. The result is a garment that can be worn continuously during movement , where temperature regulation is instead achieved by adjusting a thin shell on top.

The Core Hoodie uses the lightest version of PrimaLoft® Active (75 g/m²) , making it the most breathable and lightest hoodie in the Core family . It works equally well as a very warm first layer in extreme cold , as a technical midlayer under a wind or rain jacket in high-intensity conditions. When combined with an ultra-light windbreaker – such as the OMM Sonic Windproof – it quickly transforms into a highly effective insulation system with extreme warmth-to-weight performance .

The garment insulates even when wet and has very good moisture transport, which means you dry quickly and avoid getting cold during breaks or rapid weather changes. The soft, rolled hood functions as both a hood and a warming collar , and the flatlock seams are pulled away from the shoulders for maximum comfort under a backpack or running vest.

Weighing in at around 115 grams, the Core Hoodie is one of the most effective ways to add warmth to a fast and lightweight system , without risking overheating or unnecessary pack weight.

Features & Benefits

PrimaLoft® Active 75 g/m² – ultra-light active insulation with high air permeability

Weighs approximately 115 g – extreme warmth in minimal weight

Ventilates automatically at high intensity – perfect for movement

Insulates even when damp – safe in changing weather

Optimal with shell garments – regulate heat through the outer layer

Valley-to-peak function – works throughout the entire trip

Features

Active insulation hoodie in synthetic

PrimaLoft® Active insulation (75 g/m²)

Flatlock seams positioned away from the shoulders (minimizes chafing)

Soft rolled hood/collar

Reflective logo

Very low bulk – easy to pack in a vest or backpack

Technical specifications

Weight : approx. 115 g (M)

Insulation : PrimaLoft® Active 75 g/m²

Material : Stretchy mesh with woven synthetic insulation

Sustainability : 58% recycled material , Bluesign® & OEKO‑TEX® certified

Fit : Fitted / Performance

Sizes : XS – XL

Suitable for

Trail running, mountain running, fastpacking, ultra races and intense mountain adventures – when you want maximum temperature control and minimal weight in an active midlayer.

Care instructions

Wash according to manufacturer's instructions. Air dry. Store uncompressed to maintain loft and insulation performance.

Never tried OMM before or just need a little help finding the right size? You can find size charts and help finding the right fit HERE!