Make it count.
Every piece sets aside a dollar amount toward humanitarian causes. You see it before you buy.
Two numbers, both real.
Two numbers on every price. The crossed-out one is retail.
New pieces and labels weekly.
New pieces and labels every week. Returns on us for 30 days.
Stone Island blue polyamide full-length jacket with hood and zip fastening
Stone Island blue polyamide full-length jacket front view
Stone Island blue polyamide full-length jacket front view
Stone Island blue polyamide full-length jacket with hood and zip closure
Stone Island blue polyamide full-length jacket front view
Stone Island blue polyamide full-length jacket with hood and zip fastening
Stone Island blue polyamide full-length jacket front view
Stone Island blue polyamide full-length jacket front view
Stone Island blue polyamide full-length jacket with hood and zip closure
Stone Island blue polyamide full-length jacket front view

Product Details

Elevate your winter wardrobe with the STONE ISLAND ‘4100107’ down jacket, a masterpiece in modern outerwear. Crafted from a cutting-edge single-layer stretch tech fabric, this blue jacket boasts a sleek matte finish. Its regular fit and seamless horizontal quilting promise unparalleled insulation, while the integrated hood and high neck shield against the cold. The brand’s iconic ‘Badge Logo’ is a bold emblem of style and authenticity. A timeless essential for trendsetters.

Color: Blue
Material: 86% polyamide, 14% elastane
Country of Origin: Vietnam

SKU ST-338526-SMPN L2S154100107S0183V0020GTIN 8053819056944
New

Blue Polyamide Full-Length Jacket

by Stone Island
$920 $969

Pricing that's straightforward.

Two numbers sit on most of our pages. The crossed-out one is what the brand charges. The other is ours, set once and left alone. Nothing hides behind either. We call it DY Pure.

On this page What it is
$920 Ours. Set once, and we stand behind it.
$969 What the brand charges.
DY Pure. Nothing is hiding behind either number.
Our philanthropic promise $56.20 A fixed dollar amount from this piece, set aside for our philanthropic programs.
Where it comes from

It's less of a pricing method and more of a business philosophy. Strangely enough, I learned it from a woman who sold cars.

Her family ran dealerships in Colorado for decades. When it became time for her to run the business, she thought about what buying a car had felt like for her. The anxiety of not knowing whether she was getting the right deal. The doubt about whether she could hold her own in a negotiation. The hours it took. She wanted to do it differently.

Everyone knows the number on a car's window isn't real. She decided she didn't want to do business that way, and she made the number real. The price on the car was the price. No haggling, no salesman stepping out to talk to a manager. One person looked after you from the first handshake to the keys, and you were out the door.

The philosophy was simple. A business is allowed to make a profit. A customer is allowed to save some money. That is how the relationship with the businesses you spend your money with should be.

Because of this philosophy, I bought six cars from her over the years. It was simple. It took the anxiety out of deciding. And it built a relationship that still rings true all these years later.

It wasn't because of the deal, though the deals were always fair. It was because I never had to wonder whether I had been played. I trusted them. I went back, and I sent everyone I knew.

The business we have built

That's the business we built here. Something you love, priced properly, with retail beside it so you can see what you saved, and a fixed dollar amount from every piece set aside for our philanthropic programs. Numbers you never have to question.

Why we price this way

Retail likes to raise a price so it can mark it down and call it a sale. We'd rather earn your next visit.

That is DY Pure.

No reviews yet
Our philanthropic promise $56.20
Where the money goes
Set aside the moment this sells, for our philanthropic programs. Allocated publicly at each milestone and reported on the tracker. Decided before you buy, and it doesn't change after. How it works
New with tags. Always.
Never secondhand, except verified vintage, labeled as such.
Authentic. Always.
Designer pieces, never from marketplaces or individuals. Independent brands, direct from the maker.
A person answers. Always.
Text us anytime. Twenty years in the best rooms behind every reply. Ask us
Size Guides

Size Guide

Pick a category, find the size on the label in the first columns, then read across for the same size in other countries. Body measurements are in the last columns if you want to size from a tape measure. Brands with their own number scale, like Lacoste, have their own table under Brand sizes.

How to measure

Use a soft tape over light clothing. Keep it level and snug, not tight. Between sizes? Take the larger for outerwear, the smaller for close-fitting knits and swim.

Measurement How to take it
Chest / Bust Around the fullest part of the chest, tape under the arms and across the shoulder blades
Waist Around the natural waist, the narrowest point above the hip bones
Hips Around the fullest part of the hips and seat, feet together
Inseam From the top of the inner thigh to the ankle bone, standing straight
Foot length Stand on paper, heel to a wall, mark the longest toe; measure heel to mark. Use the longer foot
Head Around the head where a hat sits, about 1 cm (½ in) above the ears and eyebrows
Hand Around the palm at the knuckles, excluding the thumb, dominant hand
Finger Wrap paper around the finger, mark the overlap, measure in mm; or the inside diameter of a ring that fits

Measure feet and fingers at the end of the day, when they are largest.

Women's clothing

Tops, dresses, knitwear and outerwear. If sizing from a tape, use bust.

Swipe sideways to see every column →

Size US UK/AU EU/FR IT DE JP Bust in Bust cm Waist in Waist cm Hips in Hips cm
XXS 0 4 32 36 30 5 31.5 80 24 61 34 86
XS 2 6 34 38 32 7 32.5 83 25 64 35 89
S 4 8 36 40 34 9 33.5 85 26 66 36 91
S 6 10 38 42 36 11 34.5 88 27 69 37 94
M 8 12 40 44 38 13 35.5 90 28 71 38 97
M 10 14 42 46 40 15 36.5 93 29 74 39 99
L 12 16 44 48 42 17 38 97 30.5 77 40.5 103
L 14 18 46 50 44 19 39.5 100 32 81 42 107
XL 16 20 48 52 46 21 41 104 33.5 85 43.5 110
XXL 18 22 50 54 48 23 43 109 35.5 90 45.5 116

Italian sizes run two numbers above French: a French 38 is an Italian 42. Japanese sizes run small; when in doubt go up one.

Women's bottoms, underwear & swim

Pants, shorts & skirts

Swipe sideways to see every column →

Size US UK/AU EU/FR IT Jeans Waist in Waist cm Hips in Hips cm
XXS 0 4 32 36 24 24 61 34 86
XS 2 6 34 38 25 25 64 35 89
S 4 8 36 40 26 26 66 36 91
S 6 10 38 42 27 27 69 37 94
M 8 12 40 44 28 28 71 38 97
M 10 14 42 46 29 29 74 39 99
L 12 16 44 48 30 30.5 77 40.5 103
L 14 18 46 50 32 32 81 42 107
XL 16 20 48 52 33 33.5 85 43.5 110
XXL 18 22 50 54 35 35.5 90 45.5 116

Underwear, bikinis & one-pieces

Swipe sideways to see every column →

Size US dress UK/AU EU/FR IT Panty (US) Hips in Hips cm
XS 0–2 4–6 32–34 36–38 5 34–35 86–89
S 4–6 8–10 36–38 40–42 6 36–37 91–94
M 8–10 12–14 40–42 44–46 7 38–39 97–99
L 12–14 16–18 44–46 48–50 8 40.5–42 103–107
XL 16–18 20–22 48–50 52–54 9 43.5–45.5 110–116

Bikini tops with cup sizes use bra sizing: band is underbust in inches rounded to the nearest even number; cup is bust minus band (1 in = A, 2 = B, 3 = C, 4 = D).

Men's clothing

T-shirts, shirts, knitwear, hoodies and jackets. If sizing from a tape, use chest.

Swipe sideways to see every column →

Size US/UK/AU EU/IT/FR DE JP Chest in Chest cm Waist in Waist cm Neck in Neck cm
XS XS 44 44 S 34–36 86–91 28–30 71–76 14–14.5 36–37
S S 46 46 M 36–38 91–97 30–32 76–81 15–15.5 38–39
M M 48 48 L 38–40 97–102 32–34 81–86 15.5–16 39–41
L L 50 50 LL 40–42 102–107 34–36 86–91 16.5–17 42–43
XL XL 52 52 3L 42–44 107–112 36–38 91–97 17.5–18 44–46
XXL XXL 54 54 4L 44–46 112–117 38–40 97–102 18.5–19 47–48
3XL 3XL 56 56 5L 46–48 117–122 40–42 102–107 19–19.5 48–50

Italian designer pieces are often labelled by EU number only (46, 48, 50). Japanese letter sizes run one size smaller than US. Single-digit sizes such as 3, 4 or 5 are a brand scale: see Brand sizes.

Men's bottoms, underwear & swim

Pants, shorts & joggers

Swipe sideways to see every column →

Size US/UK/AU EU/IT/FR DE JP Waist in Waist cm Hips in Hips cm
XS 28 44 44 73 28 71 34–35 86–89
S 30 46 46 76 30 76 36–37 91–94
M 32 48 48 82 32 81 38–39 97–99
M 33 49 49 85 33 84 39–40 99–102
L 34 50 50 88 34 86 40–41 102–104
L 36 52 52 91 36 91 42–43 107–109
XL 38 54 54 97 38 97 44–45 112–114
XXL 40 56 56 102 40 102 46–47 117–119
3XL 42 58 58 107 42 107 48–49 122–124

Inseam: short 30 in (76 cm), regular 32 in (81 cm), long 34 in (86 cm).

Underwear, swim briefs, trunks & swim shorts

Swipe sideways to see every column →

Size US/UK EU IT FR JP Waist in Waist cm
XS XS 3 2 1 S 26–28 66–71
S S 4 3 2 M 28–30 71–76
M M 5 4 3 L 30–33 76–84
L L 6 5 4 LL 33–36 84–91
XL XL 7 6 5 3L 36–39 91–99
XXL XXL 8 7 6 4L 39–42 99–107

Briefs, thongs, jocks and swim tangas are cut to fit snugly; stay with your measured size. This table is for underwear and swim only; Lacoste clothing uses its own scale under Brand sizes.

Brand sizes (Lacoste)

Lacoste labels its clothing with its own numbers instead of letters. On our product pages that number appears as the size (for example "Italian Size MEN: 4"). Find it in the first column and read the letter size beside it.

Lacoste men's polos, T-shirts, sweatshirts, knitwear, joggers & tracksuits

Swipe sideways to see every column →

Lacoste Size EU/IT Chest in Chest cm Waist in Waist cm
2 XS 44 34 87 28 73
3 S 46 35–37 90–93 30–31 77–81
4 M 48 38–40 97–101 33–35 85–89
5 L 50 41–43 105–109 36–38 93–97
6 XL 52 44–46 113–117 39–42 101–106
7 2XL 54 48–49 121–125 44–46 111–116
8 3XL 56 51 129 48 121
9 4XL 58 53 134 50 126

Tops: size by chest. Joggers, shorts and pants: size by waist.

Lacoste women's clothing

Swipe sideways to see every column →

Lacoste Size US UK IT Bust in Bust cm Waist cm
32 XS 0 4 36 31 78 60
34–36 S 2–4 6–8 38–40 32–34 82–86 64–68
38–40 M 6–8 10–12 42–44 35–37 90–94 72–76
42–44 L 10–12 14–16 46–48 39–40 98–102 80–84
46–48 XL 14–16 18–20 50–52 42–44 107–112 89–94

Lacoste women's numbers are French sizes.

Women's shoes

Find your usual size, or size by foot length (last columns); the chart allows about 1 cm (⅜ in) beyond the toe.

Swipe sideways to see every column →

US UK EU IT JP cm AU Foot in Foot cm
5 3 35.5 35 22 5 8.5 21.6
5.5 3.5 36 35.5 22.5 5.5 8.7 22.0
6 4 36.5 36 23 6 8.9 22.5
6.5 4.5 37 36.5 23.5 6.5 9.0 22.9
7 5 37.5 37 24 7 9.25 23.5
7.5 5.5 38 37.5 24.5 7.5 9.4 23.9
8 6 38.5 38 25 8 9.6 24.4
8.5 6.5 39 38.5 25.5 8.5 9.75 24.8
9 7 39.5 39 26 9 9.9 25.2
9.5 7.5 40 39.5 26.5 9.5 10.1 25.7
10 8 40.5 40 27 10 10.25 26.0
10.5 8.5 41 40.5 27.5 10.5 10.4 26.4
11 9 41.5 41 28 11 10.6 26.9
11.5 9.5 42 41.5 28.5 11.5 10.75 27.3
12 10 42.5 42 29 12 10.9 27.8

Italian-made shoes often run a half size small against the EU standard; use the IT column for Italian brands. Width: standard B / medium, wide D / W.

Men's shoes

Find your usual size, or size by foot length (last columns); the chart allows about 1 cm (⅜ in) beyond the toe.

Swipe sideways to see every column →

US UK EU IT JP cm AU Foot in Foot cm
6 5 39 38.5 24 5 9.25 23.5
6.5 5.5 39.5 39 24.5 5.5 9.4 23.9
7 6 40 39.5 25 6 9.6 24.4
7.5 6.5 40.5 40 25.5 6.5 9.75 24.8
8 7 41 40.5 26 7 9.9 25.2
8.5 7.5 42 41 26.5 7.5 10.1 25.7
9 8 42.5 41.5 27 8 10.25 26.0
9.5 8.5 43 42 27.5 8.5 10.4 26.4
10 9 43.5 42.5 28 9 10.6 26.9
10.5 9.5 44 43 28.5 9.5 10.75 27.3
11 10 44.5 43.5 29 10 10.9 27.8
11.5 10.5 45 44 29.5 10.5 11.1 28.2
12 11 46 44.5 30 11 11.25 28.6
12.5 11.5 46.5 45 30.5 11.5 11.4 29.0
13 12 47 45.5 31 12 11.6 29.4
14 13 48.5 46.5 32 13 11.9 30.2

UK and Australian men's sizes are one number below US. Width: standard D / medium, wide EE / W.

Accessories

Hats & headwear

Swipe sideways to see every column →

Size Fitted (US) UK Head in Head cm
XS 6½ – 6⅝ 6⅜ – 6½ 20.5–21 52–53
S 6¾ – 6⅞ 6⅝ – 6¾ 21.25–21.75 54–55
M 7 – 7⅛ 6⅞ – 7 22–22.5 56–57
L 7¼ – 7⅜ 7⅛ – 7¼ 22.75–23.25 58–59
XL 7½ – 7⅝ 7⅜ – 7½ 23.5–24 60–61
XXL 7¾ – 7⅞ 7⅝ – 7¾ 24.5–25 62–63

Snapbacks and adjustable caps fit S through L in one size.

Belts

Choose a belt two inches (5 cm) above your pant waist so it buckles on the middle hole.

Swipe sideways to see every column →

Size Belt in Belt cm Pant waist in
XS 30 75 28
S 32 80 30
S / M 34 85 32
M 36 90 34
L 38 95 36
L / XL 40 100 38
XL 42 105 40
XXL 44 110 42

Gloves & mittens

Swipe sideways to see every column →

Size Men's Women's Hand in Hand cm
XS – 6 6–6.5 15–16.5
S 7 6.5 6.5–7 16.5–18
M 7.5 7 7–7.5 18–19
M / L 8 7.5 7.5–8 19–20.5
L 8.5 8 8–8.5 20.5–21.5
XL 9 – 8.5–9 21.5–23
XXL 9.5 – 9–9.5 23–24

Socks

Swipe sideways to see every column →

Size Men's US shoe Women's US shoe EU shoe
S 3–6 4–7 35–38
M 6–9 7–10 39–42
L 9–12 10–13 43–46
XL 12–15 – 47–50

Rings

Find your usual ring size, or measure the inside diameter of a ring that fits, or your finger's circumference in mm (last columns). Knuckle size matters more than the base of the finger.

Swipe sideways to see every column →

US/CA UK/AU EU/ISO FR / IT JP Diameter mm Circ. mm
4 H 47 7 7 14.9 46.8
4.5 I 48 8 8 15.3 48.0
5 J½ 49 9 9 15.7 49.3
5.5 K½ 51 10.5 10 16.1 50.6
6 L½ 52 12 11 16.5 51.9
6.5 M½ 53 13 12 16.9 53.1
7 N½ 54 14.5 14 17.3 54.4
7.5 O½ 56 15.5 15 17.7 55.7
8 P½ 57 17 16 18.1 57.0
8.5 Q½ 58 18 17 18.5 58.3
9 R½ 59 19.5 18 18.9 59.5
9.5 S½ 61 21 19 19.4 60.8
10 T½ 62 22 20 19.8 62.1
10.5 U½ 63 23.5 22 20.2 63.4
11 V½ 65 24.5 23 20.6 64.6
11.5 W½ 66 26 24 21.0 65.9
12 X½ 67 27 25 21.4 67.2
12.5 Z 68 28.5 26 21.8 68.5
13 Z½ 70 29.5 27 22.2 69.7

Bags, wallets, scarves, sunglasses and other jewelry are one size; dimensions are on each product page.

Quick rules & fit notes
From To Rule
US women's dress UK / AU Add 4
US women's dress EU / FR Add 32
US women's dress IT Add 36
FR IT Add 4
Lacoste men's number Letter size 2 = XS, 3 = S, 4 = M, 5 = L, 6 = XL, 7 = 2XL, 8 = 3XL
US men's chest (in) EU / IT Add 10
US men's waist (in) EU / IT Add 16
US men's shoe UK Subtract 1
US women's shoe UK Subtract 2
US men's shoe EU Add 33
US women's shoe EU Add 31
Any shoe JP Foot length in cm
Pant waist (in) Belt (in) Add 2

Fit by product type

Product Fit If between sizes
Outerwear, hoodies, sweatshirts Relaxed, room for a layer Size up
T-shirts, tanks, polos True to size Stay
Performance & activewear Close to the body Size down
Underwear, briefs, swim Snug Stay
Dresses, skirts True to size Size by the larger of bust or hips
Jeans True to size; stretch relaxes with wear Size down for stretch denim
Shoes True to size Up for a thick sock, down for a narrow foot

Unisex and lifestyle pieces are cut to men's sizing; women typically take one size down.

 
Shipping calculated at checkout.

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Product Details

Elevate your winter wardrobe with the STONE ISLAND ‘4100107’ down jacket, a masterpiece in modern outerwear. Crafted from a cutting-edge single-layer stretch tech fabric, this blue jacket boasts a sleek matte finish. Its regular fit and seamless horizontal quilting promise unparalleled insulation, while the integrated hood and high neck shield against the cold. The brand’s iconic ‘Badge Logo’ is a bold emblem of style and authenticity. A timeless essential for trendsetters.

Color: Blue
Material: 86% polyamide, 14% elastane
Country of Origin: Vietnam

SKU ST-338526-SMPN L2S154100107S0183V0020GTIN 8053819056944

Dark Yarn is an independent retailer. Stone Island is not affiliated with Dark Yarn or its philanthropic programs.

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