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This lightweight, waterproof hiking jacket is perfect for various outdoor adventures, whether hiking, hill walking, or even walking the dog in the park. It's made with recycled yet durable materials and is bluesign® approved.
This lightweight, waterproof hiking jacket is perfect for various outdoor adventures, whether hiking, hill walking, or even walking the dog in the park. It's made with recycled yet durable materials and is bluesign® approved.
Mammut

Mammut Women's Alto Light HS Hooded Jacket Marine

£149.50 £230.00 35% off
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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
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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 Women's Alto Light HS Hooded Jacket Marine

Season:Sale SS24

Brand:Mammut

Code:1010-30670-5118

Product Ratings

Waterproof
WaterproofReally Waterproof
Breathability
BreathableUltra Breathable
Weight
LightHeavy
Features
Low Feature SetHigh Feature Set

We find this suitable for

Camping

Hiking

Everyday Carry

Travel & Leisure

What is the Alto Light HS Hooded Jacket?

It's a lightweight, stretchy, waterproof jacket designed for various outdoor activities, such as hiking, scrambling, hill walking or even everyday errands. The Alto Light HS Hooded Jacket is perfect for those seeking a durable, all-round jacket that they can use regularly throughout the year.

What is it made of?

The face material of this jacket is recycled polyester, which is lighter than nylon and offers ample breathability for more humid conditions. Though recycled, it performs well and is incredibly durable, making this jacket able to withstand the rigours of everyday and outdoor life. This material is treated with a PFC-free DWR (durable water repellent) to enhance breathability without using harmful forever chemicals that cause harm to our ecosystems.

A 2.5-layer Mammut Drytechnology™ membrane is what makes the Alto Light HS waterproof. It offers complete protection from the elements without impacting permeability, helping to prevent sweat from building up inside.

The product is also bluesign® approved, meaning it's manufactured in a way that is safe for the environment, workers and consumers. bluesign® certifications ensure that the materials used avoid harmful substances, use reduced air and water emissions, increase resource productivity, and the production line is more transparent and trustworthy.

Mammut 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?

The one-point adjustable hood allows you to cinch in the volume with just one hand, which is ideal when carrying the dog lead or holding onto the rock when scrambling to reach the summit.

You can fasten the front of the jacket with the water-repellent zip, which also helps prevent water from seeping through the fastening when it's closed.

Two side pockets, fastened with water-repellent zips, work well for carrying small essentials, such as trail snacks, keys, or doggy bags, and keeping them handy at all times.

Underarm zips provide ample ventilation when working up a sweat; undoing each zip can dump heat without compromising weather protection.

Pre-shaped sleeves offer freedom of movement for the arms, making the jacket more comfortable when using hiking poles or stretching out. Sleeves also have hook-and-loop fasteners for easy adjustment; you can also adjust the jacket hem with the built-in drawstring if you wish. Overall, the jacket also comes with a low packing volume, making it the ideal shell to stuff away into your backpack for emergencies without taking up excessive room inside.

Features:

  • Lightweight, stretchable material for optimum comfort
  • One-point adjustable hood
  • Water-repellent front zipper
  • Two side pockets with water-repellent zippers
  • Underarm zipper for optimum ventilation
  • Pre-shaped sleeves with hook and loop fastener
  • Hem width can be adjusted with drawstring
  • Low packing volume
  • Recycled
  • PFC-free DWR
  • bluesign® PRODUCT
  • Fair Wear
Technical Information

Weight: 315g

Materials: Main Fabric 1 - Face Material (B2B): 100% Polyester (recycled) 50Dx50D with 2.5L Mammut DRYtechnology™ 100% Polyurethane

For best performance:

With any new waterproof, we advise you to wash the product with the appropriate tech wash and reapply a fresh DWR to activate the technology and achieve the best performance from day one.

How does waterproof technology work?

Modern waterproof technology often uses a waterproof membrane sandwiched between layers of fabric and a DWR (Durable Water Repellent) on the outer material.

What is 'wetting out', and how does it affect my waterproof?

DWRs commonly get worn down from contact, whether with your backpack or your fingertips. When the DWR wears down, your waterproof product may begin to 'wet out', meaning the water stops beading off the surface and starts to soak in instead.

While the waterproof membrane will prevent the jacket from leaking or water from getting inside, when your jacket wets out, moisture (from sweat or condensation) can build up on the interior, causing it to feel moist.

There's a common misconception that, when this happens, the product is faulty because people believe the waterproof membrane is leaking. However, this is most likely not the case; you simply need to clean your jacket and reapply the DWR.

The easiest way to spot when this is happening is to see if water beads off the material's surface or soaks in.

PFC/PFAS usage in modern waterproof and DWR technology

Most modern DWR technology avoids the use of PFCs/PFAS chemicals.

PFC-free means perfluorinated chemical-free. Companies such as Gore-Tex® are also beginning to eliminate these harmful chemicals in their waterproof membranes with technology like Gore-Tex® ePE.

What are PFC/PFAS chemicals?

Perfluorinated chemicals (PFCs) are also known as forever chemicals and cause environmental harm, similar to PFAS.

PFAS means per- or poly-fluorinated alkyl; these are a group of industrial chemicals that also cause detrimental harm to the environment, often through product and garment manufacture.

These chemicals can't break down, so once they reach nature (usually via factory water waste), they stay in the ecosystem and contaminate living organisms, working their way up the food chain. PFAS and PFCs are suspected carcinogens and have been known to affect mammal reproduction and hormone production. Therefore, many leading brands in the outdoor industry are now prioritising cutting out the use of these chemicals entirely to contribute to a more responsible manufacturing process.

How to care for a new waterproof product

PFC/PFAS-free waterproof products still perform effectively. However, they will require more frequent care (washing and reapplying a DWR) to ensure consistency. We stock various care products for this, which you can browse here. If this is your first time doing this, check out our easy how-to guide by clicking here.

Sizing Information
Tops/Jackets/Vests (cm)

XXS
XS
S
M
L
XL
XXL
Chest
76-80
81-85
86-91
92-97
98-106
107-114
115-122
Waist
61-65
66-70
71-75
76-81
82-90
91-99
100-108
Hips
84-88
89-93
94-99
100-105
106-114
115-122
123-130


Tops/Jackets/Vests (in)

XXS
XS
S
M
L
XL
XXL
Chest
29.9-31.5
31.9-33.5
33.9-35.9
36.2-38.2
38.6-41.7
42.1-44.9
45.3
Waist
24-25.9
26-27.6
28-29.5
30-31.9
32.3-35.4
35.8-39
39.4-42.5
Hips
33-34.6
35-36.6
37-39
39.4-41.3
41.7-44.9
45.3-48
48.4-51.2


Trousers (cm)

2

4

6

8

10

12

14

16

Waist

62-64

65-67

68-70

71-75

76-80

81-86

87-92

93-98

Hip

84-87

88-91

92-95

96-99

100-104

105-109

110-115

116-121

Inseam short

-

72

73

73

74

74

75

75

Inseam normal

77

77

78

78

79

79

80

80

Inseam long

-

84

85

85

86

86

87

-



Trousers (in)
2
4
6
8
10
12
14
16
Waist
24.4-25.2
25.6-26.4
26.8-27.6
28-29.5
30-31.5
31.9-33.9
34.3-36.2
36.6-38.6
Hip
33-34.3
34.6-35.8
36.2-37.4
37.9-39
39.4-41
41.3-43
43.3-45.3
45.7-47.6
Inseam short
-
28.3
28.7
28.7
29.1
29.1
29.5
29.5
Inseam normal
30.3
30.3
30.7
30.7
31.1
31.1
31.5
31.5
Inseam long
-
33
33.5
33.5
33.8
33.8
34.3
-
Professional Opinion
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