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Epsilon Belay Jacket

Epsilon Primaloft Belay Jacket
Epsilon Primaloft Belay JacketEpsilon Primaloft Belay JacketEpsilon Primaloft Belay Jacket - OrangeLight navy (colour option on HS2 outer fabric)Royal blue (colour option on HS2 outer fabric)Epsilon Primaloft Belay Jacket - OrangeEpsilon Primaloft Belay Jacket - OrangeEpsilon Primaloft Belay Jacket - Orange
PHD are at the forefront. This firm is world class
Lord Forsyth, former Secretary of State for Scotland

Epsilon Belay Jacket

A Primaloft insulated belay jacket for unfriendly wild & damp conditions. Designed especially for tough climbing days on classic mixed mountain routes and technical steep water-ice. Now also available in custom sizes.
Typical Operating Temp:-5°C (23°F)
Weight:640g (23oz)
Price:£311.00

Available Options:

Sizing type:
Because our custom-sized clothing is personalized specifically for you, it is non-returnable and can take up to 45 working days to make & dispatch
Body Width:
Body Length:
Arm Length:
Size:
Colour:

Features

  • Outer fabric: Waterproof / Breathable HS2 outer fabric* (with taped shoulder seams)
  • Inner Fabric: Breathable ripstop superlight MX
  • Primaloft Gold® synthetic insulation (100g/m weight in body and sleeves)
  • Shoulder seams taped
  • Front closure - 2 way YKK Aquaguard water-resistant zip with bottom locking stud
  • 3 insulated pockets:
    • 2 zipped waist level pockets
    • 1 zipped chest pocket
  • Integral hood with wired peak, sized for a modern climber's helmet:
    • Adjustable front cord with cord ends tethered inside the hood
    • Wired peak
    • Volume reducer on the back of the hood
  • New! Now also available in Custom Sizes. Specify Body Width, Body Length, and Arm Length independently*****
  • Reflector tape on front and back for night location
  • Clip loop to secure jacket at change-overs
  • Double exit adjustable hem cord
  • The Primaloft filling is edge stitched only to allow maximum loft
  • Cuffs; simple Velcro closure, to go over or under gloves
  • Stuff sac
  • Pack size: 13 x 21cm**

 

*Please note: although the outer fabric is waterproof, only the shoulder stitch lines are taped. So, although the outer will shed a lot of rain and snow, in a heavy downpour water can penetrate the stitching. However, the Primaloft Gold® insulation retains much of its insulation if wet. As always in the mountains, if there is a possibility of prolonged rain, carry full specification waterproofs.

**Please note: We make our stuff sacs big enough to allow fairly easy stuffing rather than reducing the jacket to the tightest minimum.

 

Description

This jacket is now also available in custom sizesSpecify Body Width, Body Length, and Arm Length independently to order a made-to-measure belay jacket. This tailor-made service can cope with sizes from XXXS to XXXL and is ideal if your chest/waist to height and/or arm ratios differ from standard, ready-to-wear patterns. 


Part of PHD’s trio of synthetic filled Belay Jackets (the Epsilon, Alpha and Zeta, with TOT* ratings of -5°C /-10°C /-20°C respectively), these technical insulating tops are perfectly adapted to wild, wet, unforgiving conditions: typical Scottish winter, essentially. It doesn’t end there though: demanding routes in demanding conditions – whether on steep water ice, big mountain faces or classic mixed test-pieces – are where these jackets belong, and those conditions will be familiar to climbers throughout Scandinavia, the Alps, the Arctic and Patagonia.

Equally at home when climbing or on the belay ledge, if you choose to swap one jacket between two of you as you change over at belays, you’ll find the cut is roomy enough to fit over your outer layers. If you’re keeping it for yourself though and climbing in it all day, the fit is nevertheless trim and efficient: ideal for wearing under your harness.

Freedom of movement is essential for a climber’s jacket, and so of course is protection from the elements. The climber-specific fit, waterproof fabric (with taped shoulder seams), grown on hood, full length water-resistant zip, extra body length, and pocket locations make for a solid, dependable jacket which allows you to just get on with the task at hand. These features are repeated throughout the collection, and with different levels of warmth to choose from, these belay jackets prepare you for a vast range of winter climbing adventures.

The trio share the same feature list but have different thickness of Primaloft insulation:

Jacket

Weight of
Primaloft Gold

Typical
operating
temperature
Epsilon Belay100g/m2-5°C
Alpha Belay133g/m2-10°C
Zeta Belay200g/m2-20°C

 

In our experience Primaloft Gold® absorbs water much more slowly than other waddings, a marked advantage in wet-cold conditions. Effectively, if you can retain warm air in the insulation rather than replacing it with cold water, the garment will stay much warmer.

Please note: this jacket is designed and sized to be worn over top / outer layers. It provides additional warmth on cold belays and, can be swapped between climbers at pitch change-overs. If you want a trimmer more athletic fit select the next size down.

*TOT: Typical Operating Temperature

Outdoor photos: Paul Horsman.

Please note: If you order a custom-sized version of this belay jacket it will take longer (approximately 45 days) to be manufactured ready for dispatch. Custom-sized versions of this belay jacket are not returnable and customer loyalty discount cannot be applied.

Technical

Superlight MX fabric (weight: 32 gsm)

A mini-ripstop nylon with excellent tear strength, MX is the pick of the superfine 15 denier downproof materials. We have tested lighter fabrics, but most have had significant drawbacks, while our confidence in MX is based on several years of extensive use in both our ultralight and our high mountain gear.

Primaloft Gold®

Primaloft Gold® is the ideal microfibre insulation. Ultrafine fibres produce an insulating core that is incredibly soft, lightweight and water resistant. In our experience it absorbs water much more slowly than other waddings, a marked advantage in wet-cold conditions.

The nearest of the synthetics to the feel of down, yet tougher than you would expect. Primaloft Gold® offers the best warmth/weight performance in the Primaloft range

Waterproof HS2 outer fabric (weight: 88 gsm)

HS2 is PHD's high-spec 2-layer ripstop for waterproof outers on our down. It is light enough to be the optional taped shell on our sleeping bags and tough enough for expedition use in our Omega clothing. HS2 is completely waterproof (when the seams are taped) and offers excellent breathability.

Sizing

Standard Sizing

The PHD Sizing Chart below is based on measurements without clothing, exactly the way you would buy a shirt or a sweater. A 42" (107cm) chest means that your bare chest uninflated measures 42". Inside Arm is measured from armpit to wrist-bone.

Size Height Chest Waist Inside arm
XS 155-163cm
(5'1"–5'4")
86cm
(34")
71cm
(28")
46cm
(18")
S 164-170cm
(5'5"–5'7")
91cm
(36")
76cm
(30")
48cm
(19")
M 171-178cm
(5'7"–5'10")
99cm
(39")
84cm
(33")
51cm
(20")
L 179-186cm
(5'10"–6'1")
107cm
(42")
91cm
(36")
53cm
(21")
XL 187-193cm
(6'2"–6'4")
114cm
(45")
99cm
(39")
56cm
(22")

Custom Sizing

Once you've selected a Body Width you can choose Body Length and Arm Length up to two sizes bigger or smaller. For example, a jacket with a medium (M) Body Width can be XS, S, M, L, or XL in Body Length and XS, S, M, L, or XL in Arm Length. If you have any questions about your size, please contact us.

Body Width. Use the chart below to find your Body Width. Measure yourself without clothes, relaxed with an uninflated chest.

Body Width Chest circumference Waist circumference
XS 86cm (34") 71cm (28")
S 91cm (36") 76cm (30")
M 99cm (39") 84cm (33")
L 107cm (42") 91cm (36")
XL 114cm (45") 99cm (39")


Body Length -- can be two sizes up or down from Body Width. Use the chart below to find your Body Length size. Measure your height without shoes:

Body Length Size
Your height in cm Your height in inches
XXXS 139 - 144cm 4'5" - 4'8"
XXS 145 - 154cm 4'9" - 5'
XS 155 - 163cm 5'1" - 5'4"
S 164 - 170cm 5'5" - 5'7"
M 171 - 178cm 5'7" - 5'10"
L 179 - 186cm 5'10" - 6'1"
XL 187 - 193cm 6'2" - 6'4"
XXL 194 - 201cm 6'4" - 6'7"
XXXL 202 - 209cm 6'8" - 6'10"


Inside Arm -- can be two sizes up or down from Body Width. Inside Arm is measured from armpit to wrist-bone without clothes. When you measure your inside arm let your arm hang loosely by your side. Don't extend it horizontally.

Inside Arm cm Inches
XXXS 41cm 16"
XXS 43cm 17"
XS 46cm 18"
S 48cm 19"
M 51cm 20"
L 53cm 21"
XL 56cm 22"
XXL 58cm 23"
XXXL 61cm 24"

N.B. PHD clothing is unisex.

Notes:

  • Down Jackets are sized to fit over thermal underwear & fleece.
  • Shell Jackets are sized to fit over thermal underwear & fleece or light down clothing (e.g. Minimus Jacket): to cover thick down clothing, go up one size.
  • The arms of our outdoor jackets are designed to be long enough to keep your wrists warm when your arms are extended horizontally (when using trekking poles, for example) or when you are reaching above yourself (when climbing, for example). In this respect the arm lengths of our jackets differ from street/fashion jackets.

Reviews

Features

  • Outer fabric: Waterproof / Breathable HS2 outer fabric* (with taped shoulder seams)
  • Inner Fabric: Breathable ripstop superlight MX
  • Primaloft Gold® synthetic insulation (100g/m weight in body and sleeves)
  • Shoulder seams taped
  • Front closure - 2 way YKK Aquaguard water-resistant zip with bottom locking stud
  • 3 insulated pockets:
    • 2 zipped waist level pockets
    • 1 zipped chest pocket
  • Integral hood with wired peak, sized for a modern climber's helmet:
    • Adjustable front cord with cord ends tethered inside the hood
    • Wired peak
    • Volume reducer on the back of the hood
  • New! Now also available in Custom Sizes. Specify Body Width, Body Length, and Arm Length independently*****
  • Reflector tape on front and back for night location
  • Clip loop to secure jacket at change-overs
  • Double exit adjustable hem cord
  • The Primaloft filling is edge stitched only to allow maximum loft
  • Cuffs; simple Velcro closure, to go over or under gloves
  • Stuff sac
  • Pack size: 13 x 21cm**

 

*Please note: although the outer fabric is waterproof, only the shoulder stitch lines are taped. So, although the outer will shed a lot of rain and snow, in a heavy downpour water can penetrate the stitching. However, the Primaloft Gold® insulation retains much of its insulation if wet. As always in the mountains, if there is a possibility of prolonged rain, carry full specification waterproofs.

**Please note: We make our stuff sacs big enough to allow fairly easy stuffing rather than reducing the jacket to the tightest minimum.

 

Description

This jacket is now also available in custom sizesSpecify Body Width, Body Length, and Arm Length independently to order a made-to-measure belay jacket. This tailor-made service can cope with sizes from XXXS to XXXL and is ideal if your chest/waist to height and/or arm ratios differ from standard, ready-to-wear patterns. 


Part of PHD’s trio of synthetic filled Belay Jackets (the Epsilon, Alpha and Zeta, with TOT* ratings of -5°C /-10°C /-20°C respectively), these technical insulating tops are perfectly adapted to wild, wet, unforgiving conditions: typical Scottish winter, essentially. It doesn’t end there though: demanding routes in demanding conditions – whether on steep water ice, big mountain faces or classic mixed test-pieces – are where these jackets belong, and those conditions will be familiar to climbers throughout Scandinavia, the Alps, the Arctic and Patagonia.

Equally at home when climbing or on the belay ledge, if you choose to swap one jacket between two of you as you change over at belays, you’ll find the cut is roomy enough to fit over your outer layers. If you’re keeping it for yourself though and climbing in it all day, the fit is nevertheless trim and efficient: ideal for wearing under your harness.

Freedom of movement is essential for a climber’s jacket, and so of course is protection from the elements. The climber-specific fit, waterproof fabric (with taped shoulder seams), grown on hood, full length water-resistant zip, extra body length, and pocket locations make for a solid, dependable jacket which allows you to just get on with the task at hand. These features are repeated throughout the collection, and with different levels of warmth to choose from, these belay jackets prepare you for a vast range of winter climbing adventures.

The trio share the same feature list but have different thickness of Primaloft insulation:

Jacket

Weight of
Primaloft Gold

Typical
operating
temperature
Epsilon Belay100g/m2-5°C
Alpha Belay133g/m2-10°C
Zeta Belay200g/m2-20°C

 

In our experience Primaloft Gold® absorbs water much more slowly than other waddings, a marked advantage in wet-cold conditions. Effectively, if you can retain warm air in the insulation rather than replacing it with cold water, the garment will stay much warmer.

Please note: this jacket is designed and sized to be worn over top / outer layers. It provides additional warmth on cold belays and, can be swapped between climbers at pitch change-overs. If you want a trimmer more athletic fit select the next size down.

*TOT: Typical Operating Temperature

Outdoor photos: Paul Horsman.

Please note: If you order a custom-sized version of this belay jacket it will take longer (approximately 45 days) to be manufactured ready for dispatch. Custom-sized versions of this belay jacket are not returnable and customer loyalty discount cannot be applied.

Technical

Superlight MX fabric (weight: 32 gsm)

A mini-ripstop nylon with excellent tear strength, MX is the pick of the superfine 15 denier downproof materials. We have tested lighter fabrics, but most have had significant drawbacks, while our confidence in MX is based on several years of extensive use in both our ultralight and our high mountain gear.

Primaloft Gold®

Primaloft Gold® is the ideal microfibre insulation. Ultrafine fibres produce an insulating core that is incredibly soft, lightweight and water resistant. In our experience it absorbs water much more slowly than other waddings, a marked advantage in wet-cold conditions.

The nearest of the synthetics to the feel of down, yet tougher than you would expect. Primaloft Gold® offers the best warmth/weight performance in the Primaloft range

Waterproof HS2 outer fabric (weight: 88 gsm)

HS2 is PHD's high-spec 2-layer ripstop for waterproof outers on our down. It is light enough to be the optional taped shell on our sleeping bags and tough enough for expedition use in our Omega clothing. HS2 is completely waterproof (when the seams are taped) and offers excellent breathability.

Sizing

Standard Sizing

The PHD Sizing Chart below is based on measurements without clothing, exactly the way you would buy a shirt or a sweater. A 42" (107cm) chest means that your bare chest uninflated measures 42". Inside Arm is measured from armpit to wrist-bone.

Size Height Chest Waist Inside arm
XS 155-163cm
(5'1"–5'4")
86cm
(34")
71cm
(28")
46cm
(18")
S 164-170cm
(5'5"–5'7")
91cm
(36")
76cm
(30")
48cm
(19")
M 171-178cm
(5'7"–5'10")
99cm
(39")
84cm
(33")
51cm
(20")
L 179-186cm
(5'10"–6'1")
107cm
(42")
91cm
(36")
53cm
(21")
XL 187-193cm
(6'2"–6'4")
114cm
(45")
99cm
(39")
56cm
(22")

Custom Sizing

Once you've selected a Body Width you can choose Body Length and Arm Length up to two sizes bigger or smaller. For example, a jacket with a medium (M) Body Width can be XS, S, M, L, or XL in Body Length and XS, S, M, L, or XL in Arm Length. If you have any questions about your size, please contact us.

Body Width. Use the chart below to find your Body Width. Measure yourself without clothes, relaxed with an uninflated chest.

Body Width Chest circumference Waist circumference
XS 86cm (34") 71cm (28")
S 91cm (36") 76cm (30")
M 99cm (39") 84cm (33")
L 107cm (42") 91cm (36")
XL 114cm (45") 99cm (39")


Body Length -- can be two sizes up or down from Body Width. Use the chart below to find your Body Length size. Measure your height without shoes:

Body Length Size
Your height in cm Your height in inches
XXXS 139 - 144cm 4'5" - 4'8"
XXS 145 - 154cm 4'9" - 5'
XS 155 - 163cm 5'1" - 5'4"
S 164 - 170cm 5'5" - 5'7"
M 171 - 178cm 5'7" - 5'10"
L 179 - 186cm 5'10" - 6'1"
XL 187 - 193cm 6'2" - 6'4"
XXL 194 - 201cm 6'4" - 6'7"
XXXL 202 - 209cm 6'8" - 6'10"


Inside Arm -- can be two sizes up or down from Body Width. Inside Arm is measured from armpit to wrist-bone without clothes. When you measure your inside arm let your arm hang loosely by your side. Don't extend it horizontally.

Inside Arm cm Inches
XXXS 41cm 16"
XXS 43cm 17"
XS 46cm 18"
S 48cm 19"
M 51cm 20"
L 53cm 21"
XL 56cm 22"
XXL 58cm 23"
XXXL 61cm 24"

N.B. PHD clothing is unisex.

Notes:

  • Down Jackets are sized to fit over thermal underwear & fleece.
  • Shell Jackets are sized to fit over thermal underwear & fleece or light down clothing (e.g. Minimus Jacket): to cover thick down clothing, go up one size.
  • The arms of our outdoor jackets are designed to be long enough to keep your wrists warm when your arms are extended horizontally (when using trekking poles, for example) or when you are reaching above yourself (when climbing, for example). In this respect the arm lengths of our jackets differ from street/fashion jackets.

Reviews

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