Icebreaker M Mer 125 Cool-Lite Speed SS Quarter Zip

XL
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Product details

The M Mer 125 Cool-Lite Speed Short Sleeve Shirt from Icebreaker is a high-performance top specifically designed for intense activities in warm conditions. Made from a lightweight blend of Cool-Lite™ Eyeletmesh, which combines TENCEL™ Lyocell and merino wool, it offers excellent breathability and temperature regulation. The quarter-zip allows for flexible ventilation, while the offset flatlock seams ensure an improved fit and minimize friction. Equipped with 360° reflective details, the shirt ensures visibility in low-light conditions. Ideal for runners and sports enthusiasts who value comfort and functionality, this shirt is a sustainable choice that leverages the benefits of natural fibers.

  • Cool-Lite™ Eyeletmesh for optimal ventilation
  • Quarter-zip for variable ventilation
  • Offset flatlock seams reduce friction
  • 360° reflective details for enhanced visibility.

Key specifications

Material composition
40 % merino wool
Target group
Men
Clothing size
XL
Sleeve length
Short-sleeved
Season
Summer
Fabric properties
Breathable, Flat seams, Quick drying, Reflective, Temperature regulating

General information

Item number
54675523
Manufacturer
Icebreaker
Category
Functional undershirts
Release date
14.2.2025

Colour

Colour
Black
Exact colour description
Black

Material

Upper
Lyocell, Merino wool
Material composition
40 % merino wool

Target group

Target group
Men
Age group
Adults

Clothing properties

Clothing size
XL
Sleeve length
Short-sleeved
Collar shape
Zip
Sport
Cross-country skiing
Season
Summer
Fabric properties
Breathable, Flat seams, Quick drying, Reflective, Temperature regulating
Pattern
Mottled

Cleaning

Washing instructions
Do not bleach, Do not dry clean, Do not tumble dry

Scope of delivery

Multipack
Single pack

30-day right of return and free return shipment

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Functional undershirts» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 16.Devold
    0.1 %
  • 16.GripGrab
    0.1 %
  • 16.Icebreaker
    0.1 %
  • 16.Ortovox
    0.1 %
  • 21.Lenz
    0.2 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Icebreaker
    Not enough data
  • 1.Odlo
    0 days
  • Castelli
    Not enough data
  • Craft
    Not enough data
  • Devold
    Not enough data

Return rate

How often is a product of this brand in the «Functional undershirts» category returned?

Source: Digitec Galaxus
  • 26.Reusch
    11.9 %
  • 27.Super Natural
    12.4 %
  • 28.Icebreaker
    13.5 %
  • 29.Ortovox
    14.3 %
  • 30.X-Bionic
    14.5 %
Source: Digitec Galaxus