ABOUT THE DOWN

About NANGA down quality

ABOUT THE DOWN 01

QUALITY

A concern for quality

NANGAの機能
NANGA down is carefully selected at sites where it is produced,
and aims at the highest quality.
Washed and refined domestically, NANGA guarantees the utmost in quality.

NANGA uses the down from mature waterfowl. Because it is washed and refined domestically, it has the high functionality for temperature and humidity control that belongs essentially to down, and is sturdy without the smell that is peculiar to down.

ABOUT THE DOWN 02

FILLING MATERIALS

Hungarian Silver Goose

Only Hungarian Silver Goose down is used, which is washed domestically. 90-7% down with a fill power of 930 FP, a very high degree of thermal insulation.

930FP DOWN
SPDX

Only Polish White Goose down of the highest quality is used, which is washed domestically. 93-7% down with a fill power of 860 FP, a very high degree of thermal insulation.

860FP 羽毛
UDD

Ultrahydrophobic (super water-resistant) processing is added to DX down, yielding a high quality, high performance down with a fill power of 770 FP. Down and a water-repellant resin are joined at the molecular level, blocking the permeation of water by making a wall of fine particles. It is the highest grade of down, which "lets moisture pass through, but does not absorb water."

770FP 羽毛
DX

Only European White Duck down is used, which is washed domestically. 90-10% down with a fill power of 760 FP. It is a high-quality down, excelling in cost and performance.

760FP C.FIBER
Fill power index (FP)

expresses the "down strength" and "resistance to pressure" according to standards for measuring down. A fill power of 760 means that if 30g of down is pressed down on with normal pressure in an experiment, it shows a resistance of 760 cubic inches. The higher the FP rating, the better the down is.

Bulkiness (Fill Power)

The quality of down is examined by the IDFL (International Down and Feather Testing Laboratory) of the United States, and only down that has met each fill power is used.

Fill power index / Bulkiness
ABOUT THE DOWN 03

SEK MARK

all NANGA down is washed domestically, bacteria is killed through two processes using high temperature and ozone, and fatty acids that are the cause of smells are completely removed. Further, processing is done to prevent the propagation of bacteria and to prevent smells. Repeatedly going through this kind of processing, NANGA sleeping bags conform to JIS standards.

Products with the SEK mark are guaranteed the following three things:

1. anti-bacterial and deodorizing effectiveness
2. durability of effect (washability)
3. safety of processing

SEKマーク
ABOUT THE DOWN 04

CERTIFICATE OF ORIGIN

Proof of Country of Origin

Proof that only European material are used

We attach proof of the country of origin for the down used in NANGA down products. This proves that NANGA down uses only European down.

HUNGARIAN SILVER GOOSE DOWN
POLISH WHITE GOOSE DOWN
EUROPEAN WHITE DUCK DOWN
WHITE DUCK DOWN
原産国証明

PRODUCTS