Mammut Massone Light T-Shirt
MColour4
Size5
Product details
The Massone Light T-Shirt by Mammut is a versatile functional shirt that performs well both in the climbing gym and outdoors. It is made from a breathable blend of odor-resistant hemp, quick-drying recycled polyester, and Lyocell, ensuring a comfortable wearing experience. The special cut under the arms allows for unrestricted freedom of movement, while the contrasting vertical back seam adds a stylish touch. Thanks to its longer cut, the shirt stays in place even under a climbing harness. This T-shirt combines functionality and comfort, making it ideal for all climbing enthusiasts.
- Breathable hemp-polyester-Lyocell blend
- Quick-drying for optimal wearing comfort
- Underarm gussets for maximum freedom of movement
- Longer cut prevents slipping under the harness.
Material composition | 10% Lyocell, 35% polyester, Main material: 55% hemp |
Target group | Men |
Clothing size | M |
Sleeve length | Short-sleeved |
Item number | 66627996 |
Manufacturer | Mammut |
Category | Functional undershirts |
Manufacturer No. | 1017-06540-50665-114 |
Release date | 27.1.2026 |
Colour | Blue |
Exact colour description | Blue |
Upper | Hemp, Lyocell, Polyester |
Material composition | 10% Lyocell, 35% polyester, Main material: 55% hemp |
Target group | Men |
Age group | Adults |
Clothing size | M |
Sleeve length | Short-sleeved |
Collar shape | Round neck |
Sport | Outdoor |
Season | All-season |
Fabric properties | Breathable, Elastic, Odour-inhibiting, Quick drying, Temperature regulating |
Fit | Regular fit |
Pattern | Unicoloured |
Country of origin | Vietnam |
Manufacturer commitment | Fair wear, SBTi |
CO₂ emissions | 8.53 kg |
Climate contribution | CHF 0.21 |
Multipack | Single pack |
Weight | 184 g |
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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- 20.Salewa0.2 %
- 20.Super Natural0.2 %
- 20.X-Bionic0.2 %
- 24.Rukka0.3 %
- 25.Mammut0.4 %
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- MammutNot enough data
- 1.Odlo2 days
- CastelliNot enough data
- CraftNot enough data
- DevoldNot enough data
Return rate
How often is a product of this brand in the «Functional undershirts» category returned?
Source: Digitec Galaxus- 21.Castelli10.2 %
- 22.Smartwool10.4 %
- 23.Mammut10.8 %
- 24.Super Natural10.9 %
- 25.Devold11.4 %



