Pajak - Radical ULX (9°C)

Ultralight down sleeping bag (9°C)

The Radical ULX is the simplest and lightest sleeping bag in the series. We designed it for those who value every gram and every liter of space—whether they're carrying it in a saddlebag, pannier, or the side pocket of their backpack.

It weighs just 190 grams and packs down to 1.5 liters—smaller than a standard water bottle. Perfect for fast adventures, bikepacking, lightweight treks, and multi-day motorcycle tours.

It's filled with 900 CUIN (95/5) Polish white goose down, RDS-certified – the same filling we use in our expedition models. In this version, it's used in a lighter version to keep the weight down while still providing warmth on cool summer nights.

The simple chamber construction ensures that the down expands evenly and helps prevent cold spots.

The outer layer is made of GELANOTS Ultra Light ripstop fabric, which is moisture- and abrasion-resistant. There's no zipper – the narrow opening keeps warmth in and helps keep the weight down.

The drying loops on the outside allow you to hang the sleeping bag in the morning. The set includes two bags – a compression sack for transport and a mesh storage bag to maintain the down's volume between trips.

The ULX can be used as a standalone summer sleeping bag, or as a modular part of a layered sleep system – for example, in combination with the Phantom when you travel 40-50 km a day and cannot take more than you need.