Pajak Radical 1Z Regular

Pajak Radical 1Z Regular – Ultralight down sleeping bag for warm adventures

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Pajak Radical 1Z Regular is an extremely lightweight and highly compressible down sleeping bag developed for fast-and-light adventures , summer hiking, bikepacking and overnight stays where packing volume and weight are crucial. The Regular size is adapted for people up to 180 cm and balances low weight with good comfort.

The sleeping bag is filled with 235g of 900 Fill Power RDS-certified Polish white goose down (95% down / 5% feather) – the same high down standard used in Pajak’s expedition models. It provides very effective insulation in relation to its weight and maintains its loft over time. The Z-baffled construction eliminates thermal bridges and contributes to even heat distribution in the body-hugging mummy shape .

The GELANOTS® Ultra Light Ripstop Shell outer fabric has a hydrophobic treatment that resists moisture and abrasion while remaining breathable. The integrated HMS (Humidity Management System) technology helps to keep the microclimate in the bag drier. A YKK zipper with insulated zipper baffle minimizes heat loss, and the sleeping bag has an inner pocket for small items and internal and external hanging loops for drying.

The Radical 1Z Regular weighs approximately 440–475g (depending on specification) and packs down to approximately 2.2–2.5L , making it ideal for trips where every gram counts. It performs best around 5°C , and can be used in lower temperatures with the right layers. Compression and storage sack included . Made in Europe (Poland) with RDS certified down.

Advantages of Pajak Radical 1Z Regular

Ultralight down sleeping bag for summer & fast-and-light

900 FP RDS‑certified Polish goose down

Very small packing volume (approx. 2.2–2.5 L )

Z-construction eliminates thermal bridges

Hydrophobic, durable GELANOTS® Ripstop outer fabric

YKK zipper with insulated zipper baffle

Inner pocket and hanging loops

Made in Europe

Specifications (Regular)

Recommended body height: up to 180 cm

Weight: approx. 440–475 g

Filling weight: approx. 235 g

Insulation: 900 FP goose down (95/5), RDS‑certified

Temperature (EN/ISO):

• Comfort: approx. 5 °C
• Limit: approx . 0 °C
• Extreme: about −15 °C

Pack volume: approx. 2.2–2.5 L

Outer fabric: GELANOTS® Ultra Light Ripstop (hydrophobic)

Shape: Mummy

Season: 2-season (spring/summer)

Manufacture: Europe (Poland)