Mountain Core Smock
Mountain Core Smock
Mountain Core Smock

Mountain Core Smock

PrimaLoft® ACTIVE Insulating Fabric weaves PrimaLoft® fibres onto a mesh, giving a super high volume and open structure. Fabrics insulate by trapping pockets of air that the wearer’s heat cannot pass through. Core structure is exceptional at creating these pockets. However the openness also allows for a light breeze to disturb these air pockets and remove the insulation effect.


We always choose synthetic insulation over down to be sure that we can get warm even when everything is wet. We believe PrimaLoft® make the best synthetic insulation and so it is an easy choice for us. 125g/m2 PrimaLoft® ACTIVE uses 64% post-consumer recycled material, it is also bluesign and Oeke-Tex approved.

Now £169.99£180.00 Save £10.01
Combining revolutionary PrimaLoft® Active insulation with our own lightweight and wind-resistant Flexile shell, the Mountain Core Smock is an incredibly effective insulating layer that still provides excellent breathability during activities with variable output. The large through-pocket is the perfect hand warmer for before and after your early morning run.PrimaLoft® Active is built from a synthetic plume woven through a knitted mesh, offering the warmth of a fleece but with less than half the weight. With all the benefits of synthetic insulation, Core products work wet or dry with incredible wicking properties to ensure you won’t stay wet for long. Using the 125g/m2 weight of PrimaLoft® Active means 65% of the insulation is derived from recycled sources. The stretch nylon Flexile shell fabric has a high degree of wind and water resistance whilst retaining good breathability, perfect for mixed conditions. Pair with a shell in bad weather to increase the insulating benefits and protection


Stretch Panelling
Wind resistant
Warm when wet
Large front fleece lined through-pocket
Reverses to form a fleece pillow
Key clip
YKK® quarter-length zip


Weight 355g
Flexile: Nylon/Spandex mix
4-way stretch
Quick drying
Fast WickingWind resistant
DWR: Durable Water Repellancy
64% recycled insulation

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Product Specific FAQs

Delivery & Tracking

When will it be delivered?

We aim to ship all orders that we receive by 3 pm UK time between Monday to Friday

How are your items sent

Our main UK Shipping option is with Royal Mail Tracked service
( In some circumstances we may use other carriers, depending on the destination and product )

Is there tracking on my order?

Yes, tracking numbers are sent when the order despatch confirmation is sent, and they have a link to your tracking service
Tracking usually comes live during the evening of the day of despatch of your order

Do you ship outside of the UK?

Yes we do.
Overseas shipping will vary depending on location, weight, and service available.
Delivery times for overseas orders can vary considerably depending on location, please get in touch if
you need details of delivery options by emailing and giving us your address,
including country and Post or Zip code

Delivery within 2 to 3 days via tracked courier
Free shipping for orders over £50
more details here

30 day window to return your item
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