Lithos SL Harness
Sam is 188cm, wearing size 4-B
Lithos SL Harness
Lithos SL Harness
Lithos SL Harness
Lithos SL Harness
Lithos SL Harness
Lithos SL Harness
Lithos SL Harness
  • Sam is 188cm, wearing size 4-B
1 8

Lithos SL Harness - Black / Mantis

Lithos SL Harness

A precision-engineered sport-climbing harness, built to go from project to send.

$250.00
$250.00
Sale Sold out

4 payments of $62.50

from $10/wk
Colour: Black / Mantis
Size: 1-B

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Harness Lithos SL - Multi

Lithos SL Harness is a precision-engineered sport-climbing harness designed for alpine and rock activities.

  • Product Type: Unisex lightweight climbing harness
  • Material: Warp Strength Technology
  • Weight: 275g
  • Precision-engineered for sport climbing
  • Next evolution in Warp Strength Technology balances support, comfort, and durability for repeat sessions
  • Revolutionary sizing system lets you match waist and leg loop sizes to customise fit and waist-to-leg-loop ratio

Pair it with a midlayer for cooler crag days, like a men's hiking fleece or women's hiking fleece.

Dynamic, light, and precision-engineered for sport climbing, the Lithos SL Harness feels almost weightless whether you're warming up or going for the redpoint. Featuring the next evolution in Warp Strength Technology, the Lithos SL strikes the perfect balance of support, comfort, and durability, meeting the demands of the most committed sport climbers, session after session. Plus, with a revolutionary sizing system, you can customize your fit like never before, dialing in the perfect waist-to-leg-loop ratio for all-day comfort.

Size and fit tip: The Lithos SL introduces our new harness-sizing system—just match your waist and leg loop sizes from the chart to customize your perfect fit.

 

Lithos SL Harness sizing chart

Your body measurements in centimetres:

Size Range

Waist

Thigh

Size

1

64.5 - 72

50 - 54

1-A

1

64.5 - 72

51 - 55

1-B

2

71.5 - 79

50 - 54

2-A

2

71.5 - 79

54 - 58

2-B

3

78.5 - 86

53- 57

3-A

3

78.5 - 86

58 - 62

3-B

4

85.5 - 93

57 - 61

4-A

4

85.5 - 93

62.5 - 66.5

4-B

5

92.5 - 100

61.5 - 65.5

5-A

5

92.5 - 100

68 - 72

5-B

6

99.5 - 107

67 - 71

6-A

6

99.5 - 107

68 - 72

6-B

Note: Size ranges are guidelines only and will vary with the type of clothing worn during measurement. Harnesses fit differently on different individuals even when measurements are the same sizes and are based on actual body dimensions.

Climb

Climb

Climbing equipment designed for efficient movement and protection in alpine environments.

Superlight

Superlight

Superlight materials and design, emphasizing light weight and packability over durablity.

WARP: Strength Technology™

WARP: Strength Technology™

Lightweight, comfortable and durable harness construction. Evenly disperses load across width.

Warp Strength Technology™

The latest evolution in WST™ anchors engineered webbing to structural fabric for strength and support.

New sizing system

Pair your waist-belt size with a fixed leg-loop size to ensure the most precise and comfortable fit.

Minimalist design

Two snap-fit gear loops deliver streamlined performance for your hardest redpoints.

Harness Lithos SL - Multi

Lithos SL Harness

Description

Lithos SL Harness is a precision-engineered sport-climbing harness designed for alpine and rock activities.

  • Product Type: Unisex lightweight climbing harness
  • Material: Warp Strength Technology
  • Weight: 275g
  • Precision-engineered for sport climbing
  • Next evolution in Warp Strength Technology balances support, comfort, and durability for repeat sessions
  • Revolutionary sizing system lets you match waist and leg loop sizes to customise fit and waist-to-leg-loop ratio

Pair it with a midlayer for cooler crag days, like a men's hiking fleece or women's hiking fleece.

Dynamic, light, and precision-engineered for sport climbing, the Lithos SL Harness feels almost weightless whether you're warming up or going for the redpoint. Featuring the next evolution in Warp Strength Technology, the Lithos SL strikes the perfect balance of support, comfort, and durability, meeting the demands of the most committed sport climbers, session after session. Plus, with a revolutionary sizing system, you can customize your fit like never before, dialing in the perfect waist-to-leg-loop ratio for all-day comfort.

Size and fit tip: The Lithos SL introduces our new harness-sizing system—just match your waist and leg loop sizes from the chart to customize your perfect fit.

 

Lithos SL Harness sizing chart

Your body measurements in centimetres:

Size Range

Waist

Thigh

Size

1

64.5 - 72

50 - 54

1-A

1

64.5 - 72

51 - 55

1-B

2

71.5 - 79

50 - 54

2-A

2

71.5 - 79

54 - 58

2-B

3

78.5 - 86

53- 57

3-A

3

78.5 - 86

58 - 62

3-B

4

85.5 - 93

57 - 61

4-A

4

85.5 - 93

62.5 - 66.5

4-B

5

92.5 - 100

61.5 - 65.5

5-A

5

92.5 - 100

68 - 72

5-B

6

99.5 - 107

67 - 71

6-A

6

99.5 - 107

68 - 72

6-B

Note: Size ranges are guidelines only and will vary with the type of clothing worn during measurement. Harnesses fit differently on different individuals even when measurements are the same sizes and are based on actual body dimensions.

Features & Specs

Technical features

  • Lightweight
  • Durable
  • Water repellent

Construction

Design & Fit

Hem configuration

Patterning

Reinforcements

Sustainability

  • Contains materials that meet the bluesign® criteria
  • PFAS (Per- and polyfluoroalkyl substances) Compliant
  • Primary fabric - bluesign® approved material
  • Secondary fabric - bluesign® approved material

Hem leg shape

UPF rating

Integrated features

Harness features

  • Belay loop
  • The next evolution of Warp Strength Technology integrates structural fabric across the back panel, simplifying construction while dramatically enhancing support and maintaining the harness’s incredibly thin 2mm waistbelt
  • Two snap-fit moulded gear loops are strategically placed for effortless clipping and can hold a full rack of quickdraws while keeping the harness streamlined and minimalist—perfect for projecting and redpoint attempts
  • The new forged buckle design improves the cinching action for a secure fit while making it easier to take the harness on and off
  • Both leg loops are a single, continuous piece of webbing, which eliminates high-wear stitching in critical areas, increasing durability and drastically improving mobility for unrestricted movement on the wall
  • The elastic rear rise is easy to unclip one-handed, even while wearing the harness, and it’s easily replaceable, extending the harness’s lifespan

Footwear geometry

Footwear outsole construction

Pack design & Construction

Pack loading closure configuration

Pack accessory features

Pack attachment configuration

Pack lid configuration

Collar configuration

Cuff & Sleeves configuration

Fabric treatment

Hood configuration

Pocket configuration

Snowsport features

Zippers & Fly configuration

Neckline configuration

Accessory features

Waist & Belt configuration

Footwear construction

Footwear liner construction

Logos & Label configuration

  • Arc'teryx Bird logo

Pack dimensions

Pack pocket configuration

Pack compression strap configuration

Pack hydration

Model is wearingSam is 188cm, wearing size 4-B
Weight275g
ActivityAlpine/Rock
SKUX00000998201
Manufacturing facilityDongguan Polyunion Textile Technology Co. Ltd

Fit & Sizing

Materials & Care

Materials

  • Origin of fabric: TAIWAN, CHINA
  • Origin of dyeing: TAIWAN, CHINA
  • Origin of Manufacture: CHINA
  • May release plastic microfibres into the environment when washing
  • Burly™ Double Weave, 220gsm
  • 690d Cordura 6
  • 6 plain weave, 242gsm

Care

  • Do not bleach
  • Do not dry clean
  • Do not iron
  • Surface clean only
  • Do not tumble dry
  • Do not wash

Reviews

  • Sizing Chart
  • Fit Guide

Women's

Harness Sizing Chart

Women's

Harness Sizing Chart

  • cm
  • inches
Size Waist Thigh
XS 64 - 69 52 - 56
S 69 - 74 55 - 59
M 74 - 81 58 - 62
L 82 - 91 62 - 66
XL 92 - 100 67 - 71
Size Waist Thigh
XS 25 - 27 20 1/2 - 22
S 27 - 29 21 1/2 - 23
M 29 - 32 23 - 24 1/2
L 32 1/2 - 36 24 1/2 - 26
XL 36 - 39 1/2 26 1/2 - 28

*Size ranges are guidelines only and will vary with the type of clothing worn during measurement. Harnesses fit differently on different individuals even when measurements are the same sizes and are based on actual body dimensions.

Women's - Harness Sizing Chart

How to Find Your Measurements:

Note: Calculate your own body measurements, then select your product size.

1. Waist: Measure around your waist at the narrowest part

2. Thigh: Measure around your thigh at the fullest point.

Women's

Harness Sizing Chart

Women's - Fit Guide
Next to Skin Fit:

Cut snug to the body through the entire garment to enhance moisture management and thermal efficiency.

Women's - Fit Guide
Trim Fit:

Cut slim to the body through chest, waist, hip and thigh for a low profile fit.

Women's - Fit Guide
Regular Fit:

Cut comfortably from the body through bust/chest, waist, hip and thigh for a classic fit.

Women's - Fit Guide
Relaxed Fit:

Cut loosely through the waist, hip, and thigh for a casual fit.

Ergonomic 3-Dimensional Patterning

Ergonomic 3-Dimensional (e3D) patterning brings an additional level of articulation to provide enhanced range-of-motion in our Trim and Regular fit categories. The application of e3D patterning allows for enhanced mobility for sport-specific activities in challenging environments.
  • Sizing Chart
  • Fit Guide

Men's

Harness Sizing Chart

Men's

Harness Sizing Chart

  • cm
  • inches
Size Waist Thigh
XS 71 - 76 52 - 56
S 76 - 81 55 - 59
M 81 - 88 58 - 62
L 89 - 98 62 - 66
XL 99 - 107 67 - 71
Size Waist Thigh
XS 28 - 30 20 1/2 - 22
S 30 - 32 21 1/2 - 23
M 32 - 34 1/2 23 - 24 1/2
L 35 - 38 1/2 24 1/2 - 26
XL 39 - 42 26 1/2 - 28

*Size ranges are guidelines only and will vary with the type of clothing worn during measurement. Harnesses fit differently on different individuals even when measurements are the same sizes and are based on actual body dimensions.

Men's - Harness Sizing Chart

How to Find Your Measurements:

Note: Calculate your own body measurements, then select your product size.

1. Waist: Measure around your waist at the narrowest part

2. Thigh: Measure around your thigh at the fullest point.

Men's

Harness Sizing Chart

Men's - Fit Guide
Next to Skin Fit:

Cut snug to the body through the entire garment to enhance moisture management and thermal efficiency.

Men's - Fit Guide
Trim Fit:

Cut slim to the body through chest, waist, hip and thigh for a low profile fit.

Men's - Fit Guide
Regular Fit:

Cut comfortably from the body through bust/chest, waist, hip and thigh for a classic fit.

Men's - Fit Guide
Relaxed Fit:

Cut loosely through the waist, hip, and thigh for a casual fit.

Ergonomic 3-Dimensional Patterning

Ergonomic 3-Dimensional (e3D) patterning brings an additional level of articulation to provide enhanced range-of-motion in our Trim and Regular fit categories. The application of e3D patterning allows for enhanced mobility for sport-specific activities in challenging environments.