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The Aenergy FL is one of Mammut's lightest, most technical baselayers. It's versatile enough to suit a variety of sports and activities, whether climbing, trail running, scrambling or hiking and offers fantastic breathability.
The Aenergy FL is one of Mammut's lightest, most technical baselayers. It's versatile enough to suit a variety of sports and activities, whether climbing, trail running, scrambling or hiking and offers fantastic breathability.
Mammut

Mammut Mens Aenergy FL Long Sleeve Marine

£70.00
Size Guide
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Pre-Launch

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Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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90-day returns period

We hope that you are perfectly happy with your order from Trekitt, but we understand that you may want to return your purchase. We offer a 90 days return period from the date of purchase, and endeavour to process all returns within 48 hours of receipt.

We do not offer a free returns service. Therefore, all customers are responsible for any postage costs when returning any goods (excluding warranty returns).

For your convenience, follow here to the Royal Mail Returns Portal to arrange return postage for your items. This is not a Trekitt operated service.

The Trekitt Returns Policy Includes...
A 90 day return period and the Trekitt 2-year Common Sense Guarantee.

Exemptions
PPE (Facemasks, Climbing Equipment etc. ), Food Goods, Accessory Cord, Socks & Underwear can only be returned if they have not been worn and/or removed from their original packaging with all swing tags still attached. If there is any sign or possibility that the goods have been used, tampered with or contaminated in any way, then we cannot accept a return on the grounds of consumer safety. Zips are typically not covered under a manufacturer's warranty.

The above does not affect the Consumer Contract Regulations. Click here to read more.

Mammut Mens Aenergy FL Long Sleeve Marine

Season:2024S C

Brand:Mammut

Code:1016-01370-5118-

What is the Aenergy FL Long Sleeve?

In simple terms, it's a super breathable, long-sleeved baselayer, suitable for multiple activities. The Aenergy FL is one of Mammut's lightest, most technical first layers and works great for adventuring in warm conditions or intense activities like scrambling, climbing, fastpacking and thru-hiking.

What is it made of?

This long-sleeve t-shirt is made with 100% recycled polyester, which is lightweight, quick-drying and has a smooth finish that feels comfortable next to the skin. Though durable, this material is extremely breathable and can wick away moisture and sweat effectively to keep you feeling fresh and comfy throughout your session.

The fabric is treated with HeiQ Fresh FFL - a bio-based technology which reduces unpleasant odours. So even after an intense trail run, you won't come home and offend your housemates with the whiffy smell.

To top it all off, these materials and treatments are bluesign® approved, and this baselayer has been created in conjunction with FairWear standards.

bluesign® approval ensures that the materials have been safely produced and production methods have considered and met certain ethical and sustainable standards concerning the environment, the consumer and workers involved in the process.

Mammut also works with FairWear to ensure safe, ethical working conditions in their factories, helping to protect workers' rights and being considerate and sustainable with their processes.

What are its features?

Mesh ventilation zones on the back and under the arms allow maximum airflow to optimise temperature regulation and performance when sweating or in warmer conditions.

Offset, smooth merrow-stitch seams offer a much nicer feel against the skin and reduce bulk around the stitching to help prevent rubbing and chafing.

The comfortable combination of a crew neckline and long sleeves makes this the ideal piece for any season or activity. You could even wear it casually in more humid conditions to keep moisture at bay and feel comfortable all day.

Small reflective elements finish the design, giving you extra visibility in poorer conditions or for adventures after dark.

Features:

  • 100% recycled polyester
  • Mesh ventilation zones on the back and underarms
  • Offset, smooth merrow-stitch seams
  • Treated with HeiQ Fresh FFL - a bio-based technology that reduces unpleasant odours
  • Quick-drying
  • Reflective elements
  • bluesign® approved
  • FairWear
Technical Information

Weight: 126g

Materials: Main Fabric 2 (B2B): polyester knit with fresh ffl by heiq. Main Fabric 1 (B2B): polyester knit with fresh ffl by heiq. HeiQ Fresh FFL.

Sizing Information
Tops/Jackets/Vests (cm)

S
M
L
XL
XXL
3XL
Chest
88-91
92-99
100-107
108-115
116-123
124-131
Waist
74-77
78-85
86-93
94-102
103-112
113-121
Hip
87-90
91-98
99-106
107-114
115-122
123-130

Tops/Jackets/Vests (in)

S
M
L
XL
XXL
3XL
Chest
34.6-35.8
36.2-39
39.4-42.1
42.5-45.3
45.7-48.4
48.8-51.6
Waist
29.1-30.3
30.7-33.6
33.9-36.6
37-40.1
40.5-44
44.5-47.6
Hip
34.2-35.4
35.8-38.6
39-41.7
42.1-44.9
45.3-48
48.4-51.2


Trousers (cm)

28

30

32

34

36

38

40

42

Waist

74-77

78-81

82-85

86-89

90-93

94-97

98-102

103-107

Hip

87-90

91-94

95-98

99-102

103-106

94-97

111-114

115-118

Inseam normal

81

81.5

82

82.5

83

83.5

84

84.5

Inseam short

-

75.5

76

76.5

77

77.5

78

-

Inseam long

-

89.5

90

90.5

91

91.5

-

-



Trousers (in)

28
30
32
34
36
38
40
42
Waist
29.1-30.3
30.7-31.9
32.3-33.5
33.9-35
35.4-36.6
37-38.2
38.6-40.2
40.6-42.1
Hip
34.3-35.4
35.8-37
37.4-38.6
39-40.2
40.6-41.7
42.1-43.3
43.7-44.9
45.3-46.5
Inseam normal
31.9
32.1
32.3
32.5
32.7
32.9
33.1
33.3
Inseam short
-
29.7
30
30.1
30.3
30.5
30.7
-
Inseam long
-
35.2
35.4
35.6
35.8
36
-
-
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