Aileron Ultra 1000 SUL Hooded Down Jacket

1000 FP

Polish mother goose down, 95/5, IDFB-tested

125 g

Fill weight in size L — up from 112 g

10D

TORAY AIRTASTIC® nylon, CIRE + DWR

330 g

Total weight, size L. Packs into its pouch

Signature point

1000 Fill Power, and 10D.

Two things define this jacket. The down: 1000 Fill Power Polish pure-white mother goose, 95/5, for the deepest warmth per gram. The shell: TORAY AIRTASTIC® 10D nylon, for the lightest reliable protection.

Together they make the Aileron Ultra 1000 SUL Hooded — the jacket that carries you through mid-winter field days.

Point 01

1000 Fill Power. A difference you feel.

Deep warmth beyond light weight.

Warmth

Deep warmth beyond light weight.

Strictly selected 1000 Fill Power Polish pure-white mother goose down (95/5). Large, lofty down clusters form a thick layer of still air that holds the warmth you need in mid-winter — steadily, hour after hour.

Verified

Tested to the international standard.

Fill power is tested to IDFB methods, the global benchmark for down and feather quality. The result — 1010 in³/30 g against a 1000 target — means the loft recovers fast after compression and warmth stays stable through repeated packing and wear.

Pre-production raw-material measurement. Natural down can vary with temperature and humidity.

125 g

A full loft, filled with 125 g.

125 g of 1000 Fill Power down in size L. A stitch-through construction spreads the down evenly, balancing generous volume with a light, easy feel on the body.

Processing

Good down — and good processing.

To get the full performance from carefully selected down, we use a premium domestic processing line. Thorough washing and precise sorting remove impurities and prevent clumping and shifting, so the loft stays stable for years.

Point 02

TORAY AIRTASTIC® 10D — where light meets durable.

The balance point of lightness and performance.

10 denier

Lightweight performance, finished in 10D.

Ultra-fine yarns in a high-density weave cut fabric weight while keeping the shell reliably down-proof. A thin, light shell that never gets in the way of the down's loft — so the fill's warmth and the jacket's light feel both come through intact.

Weather

Snow and dew — still comfortable.

A CIRE finish on the high-density shell blocks cold wind and stops down leakage; a DWR treatment keeps snow and light moisture from soaking in. From changeable outdoor conditions to city days, the jacket stays dry-feeling and warm.

Point 03

A semi-over fit built for mid-winter layering.

Volume, precisely shaped.

Silhouette

Volume, precisely shaped.

The three-dimensional volume of ultralight down, with the overall silhouette trimmed so it never looks puffy. Down bags and down tape are removed to save weight and pack size; the down sits directly against the fabric for a softer, more flexible feel. Clean on its own, natural when layered.

Fit

A 3D fit that keeps full down tidy.

Lofty down, held in a clean semi-over line. A generous body and armhole take a thick mid-layer without pulling — equally at home alone or over your winter layers.

Hood

3-point control for the whole hood.

Independent cords at both sides of the opening and at the rear let you set the hood exactly to your face and the conditions — less leakage, less flapping, a stable field of view and a technical silhouette.

Colours

Five colours, five winter moods.

Black is classic and steady; Silver turns futuristic and technical as the light shifts. Charcoal mutes the volume into something refined; Blue Black adds one cool note to deep darkness; Blue brings a vivid point to a white winter field. See the colour guide below.

Point 04

Precise where you can't see it.

Pockets, packing and the small things.

Inside pocket

A practical internal pocket for your gear.

Light, flexible mesh swallows gloves and other bulky items without fuss. Sort small items by size and use, and the weight stays evenly spread so the jacket sits right even when you are moving.

Packable

A clip-on packable pouch.

The stuff sack is attached to the jacket, so there is nothing separate to lose. Folded small for rest stops it is a solid one-piece package; when needed it detaches as a stand-alone pouch. Shake the jacket out again and the loft comes straight back.

Hem

A hem cord for the conditions.

Adjust the hem cord to close the gap where cold air gets in and keep the warmth where it belongs. It stays put while you move, and you can set the silhouette and seal exactly how you like.

Details

Warmth & protection

Everyday details

Check point

The lightness of 10D. The deep warmth of 1000 Fill Power.

An ultralight, high-density TORAY AIRTASTIC® 10D shell with 125 g of 1000 Fill Power Polish pure-white mother goose down, 95/5. The light shell lets the down loft fully; the high-recovery fill delivers deep, stable warmth at minimum weight. A relaxed silhouette, a precise hood system, and storage details made for real use — nothing was chosen lightly.

A new standard where light and warm coexist — URBANSIDE premium performance down.

Colour 1 of 5

Black

Classic and steady — the one that goes with everything.

Colour 2 of 5

Silver

Futuristic and technical, shifting with the light.

Colour 3 of 5

Charcoal

Softer than black, deeper than grey — a refined, muted volume.

Colour 4 of 5

Blue Black

A single note of colour in deep darkness — near-black with a cool blue cast.

Colour 5 of 5

Blue

The bright one for the snow — vivid against white fields.

Size chart

Flat-lay, cm, ±1–2 cm. Korean sizing runs about one size smaller than US/EU — if between sizes, size up.

Size	Length	Chest	Hem	Shoulder	Sleeve*	Cuff
S	67	111	107	46	87	46
M	69	116	112	48	89	48
L	71	121	117	50	91	50
XL	73	126	122	52	93	52
XXL	75	131	127	54	95	54

*Sleeve measured from centre back to cuff. 1 in = 2.54 cm; an inch table is on the Size Guide page.

Model size — men 180 cm / 64 kg wears L (Black, Blue Black, Charcoal) · women 168 cm / 48 kg wears S (Silver, Blue).

Weight 330 g (L) · Shell 100% nylon (TORAY AIRTASTIC® 10D) · Lining 100% nylon · Fill 1000 FP goose down 95/5, 125 g (L)

Product notes & care

To keep the jacket light and supple, it is built without down bags or down tape. Fine down fibres can occasionally work through the weave — this is natural for this construction and not a defect.

Even after high-grade washing and sorting, a small number of grey feathers (black points) or coloured plumules can appear in natural down. This is normal and does not affect quality.

The 2-way YKK zipper has a bottom pin: make sure the pin is fully seated before pulling up, or the slider can be damaged. Zipper damage from forcing is classed as wear and not covered by warranty.

Loft can look uneven after the jacket has been compressed. Shake it out and let it rest; the down recovers on its own.

Repairs are done with patches. If the same fabric is in stock we use it; otherwise a similar fabric is used, and on light colours the patch may show. A repair kit is included for small punctures; for larger damage contact us before shipping anything back.

Close every zipper and snap, turn inside out and hand wash alone in cold water with a down detergent.
Water below 30 °C, neutral detergent, no bleach. Wash dark and bright colours separately.
Do not wring. Dry flat out of direct sunlight, then tumble on low with dryer balls to restore loft. Do not dry clean or iron.

Aileron Ultra 1000 SUL Hooded Down Jacket