0
Your Profile
Your Basket 0
Your Offers 0
Continue Shopping
Checkout
To improve your shopping experience today and in the future, this site uses cookies.
Read our full Privacy Policy & Cookie information here
I Accept Cookies
This is Mammut's lightest midlayer, designed for mountain athletes and adventurers who prioritise high technical performance with low weight. It works perfectly for all seasons and a variety of activities.
This is Mammut's lightest midlayer, designed for mountain athletes and adventurers who prioritise high technical performance with low weight. It works perfectly for all seasons and a variety of activities.
Mammut

Mammut Mens Aenergy Light ML Half Zip Dark Jade

Size Guide
Earn
in Customer Rewards when you buy this item today
Sign Up
Sign In
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

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
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

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. Please use our warehouse returns address (Returns, Unit H&J, Moreton Business Park, Hereford, HR4 8DS) when completing the form.

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 Light ML Half Zip Dark Jade

Season:ZZZ Discontinued

Brand:Mammut

Code:1014-03780-40236-

What is the Aenergy Light ML Half Zip?

Weighing a mere 202g, it's a super lightweight fleece midlayer designed for athletes and outdoor enthusiasts seeking clothing that prioritises performance and weight, making it perfect for mountaineering, climbing, skiing or even hiking all year round.

What is it made of?

The Aenergy Light ML is made with Polartec® Power Grid® fleece which comprises 90% polyester and 10% elastane.

This material is lovely and warm yet incredibly breathable. It manages moisture efficiently and can wick away unwanted sweat to keep you feeling fresh and dry during intense pursuits and extended mountain sessions. The fleece has a short drying time, making this midlayer perfect for keeping clean during remote multi-day adventures or for unpredictable, showery conditions.

To top it all off, the material is bluesign® approved, and this product 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 the features?

Mammut has refined the feature set to keep the weight low, so there's just one pocket on the chest, which is bonded and secured by a trusty zip fastening. It's perfect for holding energy gels, trail snacks, a mobile phone or a small GPS device you want to keep safely tucked away.

The half-zip runs down from the collar, making it easier to put on or take off and offering additional ventilation when needed - simply unzip until you've cooled down.

Flatlock seams feel smooth and less bulky than regular stitching while offering extra elasticity to help prevent tears or rips.

Features:

  • Lightweight, highly elastic Polartec® Power Grid® fleece with high breathability, excellent moisture management and short drying time
  • Bonded chest pocket with zipper
  • Long half-length zipper makes it easier to put on and allows rapid ventilation in warm temperatures
  • Flatlock seams for extra elasticity
Technical Information

Weight: 202g

Materials: Main Fabric 1 (B2B): knit stretch odour resist. Main Fabric 1 - Face Material (B2B): 90% Polyester, 10% Elastane. Polartec® Power Grid®

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
-
-
Professional Opinion
Product Reviews
Home Clothing Mammut Fleece