Men's Atom SV Jacket - Arc'teryx - Black Sapphire - Mountain Sports
Arc'teryx

Men's Atom SV Jacket

Warmest, thermo-mapped Atom for cold, mid-output mountain activities. This product was previously the Atom Heavyweight Jacket.

$300
Color: Black Sapphire
Also inMen'sMen'sMen's
Size:
Size guide
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Top features
Moisture-resistant outer face fabric
Breathable Coreloft™ synthetic insulation keeps you warm…
Thermo-mapped
Description

When warmth is your priority, zip up the Atom SV Jacket. Made for frigid hikes and above-the-treeline adventures, its synthetic insulation seals in heat for consistent comfort in cold, damp, and windy conditions. Strategically placed for max breathability, full-length stretch side panels provide a welcome flow of air on that final summit stretch.

Perfect for
Trail
Hiking and mountain days.
Cold weather
Warm even when damp.
Built to last
Covered by the Arc'teryx warranty.
Features
  • Moisture-resistant outer face fabric.
  • Breathable Coreloft™ synthetic insulation keeps you warm…. Breathable Coreloft™ synthetic insulation keeps you warm even when it's wet
  • Thermo-mapped. Thermo-mapped for optimal performance, full-length stretch side panels with Coreloft™ insulation prevent overheating and humidity buildup
  • Wind-resistant Tyono™ 30 micro ripstop face fabric…. Wind-resistant Tyono™ 30 micro ripstop face fabric resists snagging, abrasion, and pilling
  • Recycled nylon ripstop lining resists internal abrasion.
  • Regular fit provides freedom of movement. Regular fit provides freedom of movement with room for layers
Size & Fit
Slim
Regular
Relaxed

Standard fit with room to move. True to size for most.

  • Our classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably over or under our layers.
  • Garment Centre Back Length: Size M is 29"/72cm - Varies by size
Open size guide
Materials
  • Body: 30dx30d Mechanical Stretch Mini-Rip w/PU coating, FC0 DWR, 55gsm - 100% Nylon.
  • Contrast: Recycled 20d nylon plain weave weft stretch C0 DWR, 58gsm - 88% Nylon, 12% Elastane.
  • Synthetic Insulation: Coreloft™ 120 (120 g/m²) - 100% Polyester (80% recycled polyester).
  • Lining: 20D recycled dope dyed nylon ripstop, FC0 DWR, 38gsm - 100% Nylon.
  • Care: Machine wash gentle low; Tumble dry gentle low; Do not bleach; Wash dark colours separately; Do not dry clean; Do not iron; Do not use fabric softener; Double rinse; Do not wring.
About the brand

Born in the Coast Mountains of British Columbia, Arc’teryx designs gear built for the wildest weather and the steepest lines. Every jacket, pack, and layer is engineered for precision and performance — because when conditions get real, your gear should too. At Mountain Sports, we love Arc’teryx for its unmatched craftsmanship and commitment to doing more with less, in nature’s harshest playgrounds.

Shop all Arc'teryx

SKU X000009901 · Style X000009901
Size guide

Arc'teryx Size Chart - Men's Apparel

Arc'teryx Sizing Chart

Measurements are in inches, unless otherwise noted. Charts reflect body measurements, not garment measurements.

Men's Jackets & Shirts:

Size Sleeve Chest Waist Hip
XXS 30 33 27 32.5
XS 31.5 35 29 34.5
S 32.5 37 31 36.5
M 34 40 34 39.5
L 35 43 37 42.5
XL 36 47 40.5 46.5
XXL 37 51 44.5 50
3XL 38 54.5 48.5 54

Arc'teryx sizes are intended to fit the body measurements above. If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit. Arc'teryx has recently updated the men's fit: medium remains unchanged, smaller sizes now fit tighter and larger sizes now fit looser.

Men's Pants & Shorts (Alpha Sizes):

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XXS 27 32.5 31 29 34
XS 29 34.5 31 29 34
S 31 36.5 31.5 29.5 34.5
M 34 39.5 32 30 35
L 37 42.5 32.5 30.5 35.5
XL 40.5 46.5 33 31 36
XXL 44.5 50 33 31 36
XXXL 48.5 54 - - -

Men's Pants (Numeric Waist Sizes):

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
28 30 35.5 31 29 34
29 31 36.5 31.5 29.5 34.5
30 32 37.5 31.5 29.5 34.5
31 33 38.5 32 30 35
32 34 39.5 32 30 35
33 35 40.5 32 30 35
34 36 41.5 32.5 30.5 35.5
36 38 43.5 33 31 36
38 40 45.5 33 31 36

Numeric pant sizes correspond to the body measurements shown above. Several Arc'teryx pant models are sized numerically and may be offered in Short, Regular, and Tall inseam lengths - see each product page for the options available.

How to measure: Sleeve - with your arm relaxed at your side and slightly bent, measure from the center back of your neck, across the shoulder, over the elbow and down to the wrist. Chest - with arms relaxed at your sides, measure under your arms around the fullest part of your chest. Waist - measure around your waist at the narrowest part. Hip - standing with feet hip width apart, measure around your hips at the widest part. Inseam - from a standing position, measure from your crotch down the inside of your leg to the floor.
Performance

How it ranks across conditions.

Calibrated against comparable products we stock, so you can compare like for like.

Warmth

Light
Moderate
Warm
Warmest

Coreloft™ 120gsm synthetic insulation.

Weather protection

Water resistant
Water repellent
Highly weatherproof
Waterproof

PFAS-free FC0 DWR finish sheds light rain.

Breathability

Low
Moderate
High
Very high

Synthetic fill breathes well for its warmth.

Packability

Bulky
Moderate
Packable
Ultralight

Brand-stated weight 455g.

Best for

Is this right for you?

Hiking and trail days

Moves well on the up, layers under a shell when the weather turns.

Not for: High-output efforts in mild weather; you will overheat.

As a midlayer

Slim enough to wear under a hardshell without binding at the shoulders.

Not for: Wearing over a bulky jacket — layer it under, not on top.

Everyday wear

Clean enough for town; the fabric stands up to a pack and a car seat.

Not for: Formal occasions.

Full spec sheet

Technical Specs

Style numberX000009901
Weight455g / 1 lb
FitRegular
Centre Back LengthSize M is 29"/72cm - Varies by size
Synthetic InsulationCoreloft™ 120 (120 g/m²) - 100% Polyester (80% recycled polyester)
Body30dx30d Mechanical Stretch Mini-Rip w/PU coating, FC0 DWR, 55gsm - 100% Nylon
Lining20D recycled dope dyed nylon ripstop, FC0 DWR, 38gsm - 100% Nylon
ContrastRecycled 20d nylon plain weave weft stretch C0 DWR, 58gsm - 88% Nylon, 12% Elastane
Country of manufactureBangladesh
VendorArc'teryx
Questions, answered

Before you buy.

Pulled from chats, emails and store visits. The things people actually ask us before they buy. Don't see yours?

Ask a question
How do I wash it?

Arc'teryx specify: Machine wash gentle low; Tumble dry gentle low; Do not bleach; Wash dark colours separately; Do not dry clean; Do not iron.

Where is it made?

This style is manufactured in Bangladesh. Arc'teryx publish the facility as YOUNGONE (CEPZ) LTD, Bangladesh.

How does it fit?

Arc'teryx call this a regular fit. Our classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably over or under our layers.

Does the insulation still work if it gets wet?

Largely, yes — that is the point of synthetic fill. Unlike down, Coreloft keeps most of its loft when damp, so it stays warm in wet cold where down would collapse. It is not waterproof; in sustained rain wear a shell over it.

What does the Arc'teryx warranty cover?

Arc'teryx warrant their garments against defects in materials and workmanship for the practical lifetime of the product. That covers manufacturing faults, not wear and tear or accidental damage. Bring it to us and we will help you start the claim.

Find the right one for you

How the Atom SV Jacket compares

Head-to-head against the closest alternatives we stock, so you can see where this one sits before you commit.

Feature
Arc'teryx
Atom SV Jacket
You're viewing
Arc'teryx
Atom SV Hoody
Arc'teryx
Atom Jacket
Weight455g / 1 lb490g / 1 lb 1.3 oz335g / 11.8 oz
InsulationCoreloft™ 120 synthetic insulationCoreloft™ 120 synthetic insulationCoreloft™ 60 synthetic insulation
Main fabricTyono™ 30 micro ripstop, PFAS-free DWRTyono™ 30 micro ripstop, PFAS-free DWR20d nylon ripstop, FC0 DWR, 45gsm
Weather protectionWind resistant, water repellentWind resistant, water repellentWind resistant, water repellent
FitRegularRegularFitted
MSRP$300$350$280
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