# Pajak Core 400 Regular Sleeping Bag Navy

**URL:** https://aio.lv/en/product--sea-to-summit-0006798700003363--12495089
**Data updated:** 2026-06-04 18:07 (EEST)
**Category:** Sleeping Bags
**Manufacturer:** SEA TO SUMMIT
**Manufacturer code:** 0006798700003363
**EAN:** 5905669162159
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Pajak Core 400 Regular is a high-quality sleeping bag designed for outdoor enthusiasts seeking reliable thermal insulation. Featuring a durable construction and optimized fill, this model provides comfort and warmth for various camping conditions. Its regular fit ensures a balance between mobility and heat retention, making it an essential piece of gear for hiking, trekking, and multi-day outdoor adventures.

## Long description

The Pajak Core 400 Regular Sleeping Bag in Navy is a high-performance piece of outdoor equipment engineered for hikers, trekkers, and camping enthusiasts who require dependable thermal regulation. This sleeping bag combines advanced insulation technology with a durable outer shell, ensuring that users remain warm and comfortable during multi-day expeditions in varying weather conditions. The regular fit is specifically designed to provide an optimal balance between internal space for movement and the necessary snugness to prevent heat loss, making it a versatile choice for three-season outdoor activities.
Advantages
The primary benefit of this sleeping bag lies in its superior insulation-to-weight ratio, which allows for efficient heat retention without adding unnecessary bulk to your backpack. The construction utilizes high-quality materials that are resistant to wear and tear, ensuring longevity even with frequent use in rugged environments. Furthermore, the ergonomic design promotes natural sleeping positions, while the integrated features help to seal out drafts, providing a consistent microclimate throughout the night.
Suitable for
Backpacking and long-distance trekking
Three-season camping trips
Mountain hiking and basecamp use
Outdoor adventures requiring lightweight gear
This sleeping bag may not be suitable for extreme high-altitude winter expeditions where temperatures drop significantly below the rated comfort range. Additionally, individuals who require extra width for movement during sleep may find the regular fit too restrictive compared to wider or oversized models.
Key specifications
Insulation type: High-quality down fill
Shape: Mummy style for thermal efficiency
Seasonality: Three-season
Color: Navy
Fit: Regular
To use the Pajak Core 400, remove it from its compression sack and allow the down insulation to loft fully before entering. Unzip the side closure, position yourself inside, and adjust the hood drawstrings to create a secure seal around your face. Ensure the sleeping bag is placed on a high-quality sleeping pad to prevent heat loss through conduction with the ground.
What to consider before purchase
Verify the temperature rating against your intended destination's climate
Check the dimensions to ensure the regular fit accommodates your height
Consider the weight and packed size relative to your backpack capacity
For optimal performance and longevity, store the sleeping bag uncompressed in a cool, dry place when not in use. Always use a sleeping bag liner to keep the interior clean and minimize the frequency of washing.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SEA TO SUMMIT products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SEA TO SUMMIT service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12495089/68827416_large.webp