OMM Sonic Smock Review

The OMM Sonic Smock is a super lightweight and windproof smock that packs away into its own tiny pocket that is built into the collar. It’s made from Pertex® Quantum fabric and weighs only 60g. It features a quarter length neck zip, thumb loops and a hem draw-cord.

OMM Sonic Smock

I purchased it a year ago and used it quite intensively. It weights nothing (well 60g) compared to the other jackets I used before. The fit is good and the sleeves are long and have thumb loops to offer some protection to the hands on cooler days. It keeps the wind out and even offers some water resistance in case of light rainfall. The draw-cord at the waist is excellent for keeping the wind out when its cold and windy as it prevents any air flow on the inside. The collar is high and quite snug as well and protects the neck and reduces heat loss when it is fully zipped up. Finally it packs down pretty small into it’s collar. So there is no excuse to carry it with you when you aren’t sure what the weather is going to do and when a rain jacket is overkill.

OMM Sonic Smock packed

At first I was a bit concerned about its quality and lifespan as the material feels really light and flimsy. Especially when I run past some bushes or branches. So far however it has never ripped and it turns out to be far sturdier than first impressions suggest. It feels breathable and comfortable, however when you wear it over your bare arms and get sweaty, it tends to stick to them. This offers some discomfort, especially when it’s cold and windy. As mentioned before, it offers some water resistance but it isn’t waterproof. So you will eventually get soaked in case of a heavy shower.


  • Extremely light,
  • Windproof and breathable,
  • Draw-cord at the waist,
  • Simple no-nonsense design with no unnecessary features,
  • Packs down to the size of 2 golf balls,
  • Great value for its price, RRP £60 / €70;


  • Tends to stick to your bare arms when you get sweaty,
  • Limited water resistance;

The OMM Sonic Smock is a super lightweight, simple no-nonsense windproof jacket that packs down really small and protects you against the wind and the occasional shower when you need it. The rest of the time you can stow it away in a pocket, bumbag or race-vest and you won’t even notice it’s there.