• Geyser
  • Geyser
  • Geyser
  • Geyser
  • Geyser
  • Geyser
  • Geyser
  • Geyser
Prism Belay Jacket
5.0
$380
Size & Fit Guides
Geyser

The Prism Belay Jacket is engineered to provide critical warmth and protection during prolonged periods of inactivity on exposed ridges or ledges. Climashield Apex insulation delivers reliable thermal efficiency and retains loft even after repeated compressions, ensuring performance through repeated packing and deployment. Composite body mapping enhances functionality by placing dual layers of insulation in the torso for superior core warmth, while single layers in the hood, lower arms, and underarms reduce bulk and improve mobility, allowing for free arm movement during technical tasks.

 

The 15-denier nylon shell is treated with an additional coating developed to enhance water resistance, achieving a 1000mm hydrostatic head rating. This advanced treatment sheds snow and light moisture effectively, ensuring the jacket performs in stormy, high-altitude conditions. Designed to layer over alpine gear, the Prism Belay Jacket is an essential piece for climbers needing dependable insulation in extreme environments.

Performance
  • Wind Resistance ?
    5/6
  • Weight Efficiency ?
    4/6
  • Volume Efficiency ?
    4/6
  • Durability ?
    4/6
  • Warmth ?
    5/6
  • Water Resistance ?
    2/6
Specifications
  • Product #

    1002122013

  • Recommended Activities

    Alpine Climbing / Layering / Expedition / Mountaineering

  • Fit

    Layered

  • Weight (size large)

    700 gm

  • Model Measurements

    Model is wearing size L (185cm/85kg)

Features
Material Features

• Windproof
• Double ripstop grid
• Water resistant
• Compressible and packable

Construction

• Synthetic mapping with 190 gm of insulation in the body and upper arms, and 90 gm of insulation in the hood, lower and under arms
• Pre-curved articulated sleeves
• 3D anatomical fit
• Gusseted underarms increase range of motion

Pocket Configuration

• External chest pockets with TPU zipper pulls
• Brushed hand pockets with TPU zipper pulls
• Internal dump pockets
• Two-way entry for harness compatibility
• Included stuff sack for compact transport

Hood Configuration

• Three-point adjustable hood
• Helmet compatible hood
• Stiffened chin guard
• Insulated zipper shield
• Insulated draft collar

Cuff & Sleeves Configuration

• Draft sealed cuffs
• Pre-curved articulated sleeves

Hem Configuration

• Drop hem
• Dual hem adjusters seal out drafts

Sustainability

- PFC-free DWR

- Contains materials that meet the bluesign criteria

Materials & Care
Materials
Exterior:

CETO 15
Composition: 100% Nylon
Origin: Japan

Liner:

AURAI 10
Composition: 100% Nylon
Origin: Japan

Insulation 1:

Climashield Apex 70
Composition: 100% Polyester
Origin: USA

Insulation 2:

Climashield Apex 170
Composition: 100% Polyester
Origin: USA

Product 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
• Front load washer recommended
• Use mesh bag for top load washer

Shipping & Returns

Free Worldwide Shipping

All orders ship free with no minimum purchase required. Reliable delivery ensures your gear arrives wherever you are.

Return Period

We offer a 30-day return window with no hassle. A prepaid label is provided for easy and convenient returns.

Guarantee

Every product is designed for durability. Our three-year guarantee ensures we’ll repair or replace any item that doesn’t meet expectations.