At just 60g (2.1oz), the Slinky Waistcoat is the lightest down top we’ve ever designed. A tiny lightweight that delivers real mid-layer insulation.
Only available during June 2025.
Made in our whisper-light Vertex fabric to give total wind-block and filled with our unique 1000 fillpower down the Slinky provides the highest warmth-for-weight performance possible. Packed into a tiny stuff sac, the Slinky Waistcoat is perfect for anyone planning to pack superlight. Summer racers, ultra-light trekking, and those counting every gram.
The Slinky Waistcoat will fit snugly under any of our down jackets, even the Wafer , but also delivers superb insulation as a midlayer under a wind-cheater such as our Windsmock .
Pack without noticing the weight (or the bulk).
A midlayer to boost warmth: light insulation under a wind-cheater or a light outer top.
Add performance to your sleeping bag.
The Slinky Waistcoat is a breathtaking, superlight top that gives real warmth around camp and can add warmth when you're using a sleeping bag or quilt. Incredibly, it weighs less than a short-sleeved base layer and packs down into a tiny stuff sac.
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Also available in custom sizes
We make clothing to order, so if you’re not a standard size we can make it to fit. To order a non-standard custom size, select the Custom Sizing tab and choose the body width and body length sizes that work for you. A custom size takes us a little longer (typically two weeks longer) to make and, because it’s personalized, it’s non-returnable and our customer loyalty scheme can’t be applied.
Part of the Summer Lightning Collection
Summer Lightning is a short-term opportunity to lay your hands on unique kit. This extraordinary gear is only available for such a short time because in summer we have a little breathing space to put some of our best ideas into practice, to turn possibilities into actual equipment. If you want us to make you one; order while you can! Only available during June!