To improve your shopping experience today and in the future, this site uses cookies.
I Accept Cookies
Say hi to the Senja Equaliser, Norrona's lightest and fastest-drying tank top. It's made from recycled polyester with moisture-wicking and anti-odour technology and is perfect for high-intensity activities in warm weather conditions.
Say hi to the Senja Equaliser, Norrona's lightest and fastest-drying tank top. It's made from recycled polyester with moisture-wicking and anti-odour technology and is perfect for high-intensity activities in warm weather conditions.
Norrona

Norrona Women's Senja Equaliser Tank Top Adrenalin Red

£49.00
Earn
in Customer Rewards when you buy this item today
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.

Norrona Women's Senja Equaliser Tank Top Adrenalin Red

Season:2025S A

Brand:Norrona

Code:5810-25-5630

What are the Norrona Women's Senja Equaliser Tank Top?

The Senja Equaliser Tank Top is a lightweight, breathable baselayer designed primarily for trail running but versatile enough for all your favourite activities where quick-drying comfort is key. Whether running, hiking, or hitting the gym, this tank top is built to keep you dry, comfortable, and ready to perform.

What is it made of?

This tank top is crafted from a double-knit equaliser fabric, entirely made of 100% recycled polyester. Recycled polyester comes from post-consumer materials like plastic bottles, diverting waste from landfills and giving it a second life as soft, high-performance fabric. This fabric makes the tank top lightweight and incredibly soft against your skin.

It also works hard to wick moisture away from your body and dries quickly, so you'll stay cool and comfortable.

The Senja tank top also features a UPF 15+ rating, offering sun protection during those outdoor sessions. This layer helps shield your skin from harmful UV rays, making it great for training in the sun.

To top it off, the HeiQ Fresh FFL anti-odour treatment uses a bio-based, silver-free technology that prevents the growth of odour-causing bacteria by breaking down sweat fats and proteins. As a result, you stay feeling fresh and odour-free, even after the most intense workouts or long runs.

What are its features?

The Norrona Senja Equaliser Tank Top is packed with great features for comfort and performance.

The tank top's regular fit strikes the perfect balance—it's relaxed enough to allow comfortable movement but not so loose that it feels baggy. Plus, it features a slightly longer back, providing extra coverage when on the go. This longer cut prevents the top from riding up, so you won't find yourself constantly pulling it down during runs, workouts, or stretching.

The laminated hems add a clean, polished look and prevent annoying chafing so you can focus on your stride or reps without the distraction of uncomfortable seams.

The armpit areas are designed to reduce friction, providing great freedom of movement whether you're reaching for that next handhold or pushing through those final sprints.

For those early morning jogs or evening adventures, the reflective prints and logos make sure you stay visible when the light is low, adding a layer of safety so you can run, bike, or hike with confidence, even as the sun starts to set.

Features:

  • Reflective prints and logos
  • Laminated hems
  • Chafe-free interior and armpit construction
  • Interior glass wipe panel
  • Regular fit with a longer back for coverage
Technical Information

Material: equaliser (100% Recycled Polyester, 103 g/m²)
Weight: 84g
UPF Rating: 15+
Anti-odour treatment: HeiQ Fresh FFL (Bio-based, Silver-Free)
Fit: regular, slightly longer in the back

Sizing Information
All measurements are provided in cm.

Women's Jackets and Tops

MeasurementsXSSMLXL
Body Height156-164160-168164-174168-178172-182
Chest77-8283-8889-9495-100101-107
Hip76-8283-8889-9495-100101-108
Seat86-9192-9798-103104-109110-115
Arm Length57-5858-5960-6161-6263-65



Women's Trousers

MeasurementsXSSMLXL
Body Height156-164160-168164-174168-178172-182
Waist61-6667-7273-7879-9485-91
Seat86-9192-9798-103104-109110-115
Inside Leg Length74-7676-7878-8080-8282-84
Professional Opinion
Product Reviews
Home Clothing Norrona Baselayers