Staying warm outdoors does not have to cost a fortune. The right women’s baselayer can transform a chilly dog walk or campsite evening into something genuinely comfortable, even if you are working to a tight budget.
Here we have picked some of the cheapest women’s baselayers available for 2026 that are still worth your money. They focus on simple, effective warmth rather than flashy tech, but they offer solid everyday performance for UK conditions.
We have narrowed it down to a small set of tops and bottoms that balance price and practicality. Some are the absolute lowest-cost options, while others cost only a little more but give you extra coverage or flexibility.
These budget recommendations are based on a close look at real product specifications, pricing and feature sets from established outdoor brands, not just whichever item is cheapest on the page. We focus on pieces that give reliable warmth, sensible fits and usable fabrics for walking, camping and everyday wear.
We also consider how these baselayers fit into a realistic UK kit list, where you might be layering them under fleeces and waterproofs, or using them as sleepwear in a tent. The aim is to highlight options that feel like smart purchases, rather than false economies that leave you shivering.
By concentrating on value for money, everyday usability and proven outdoor brands, we pick budget baselayers that should serve you well across multiple seasons without straining your wallet.
We started by looking at the lower-priced women’s baselayers available through Go Outdoors, with a clear focus on thermals suitable for UK walking, camping and general cold-weather use. From there we filtered out anything that looked too flimsy, uncomfortable or compromised for regular outdoor wear.
We concentrated on simple synthetic pieces that offer dependable warmth and straightforward layering, rather than chasing premium technical features. Where possible, we favoured options from well-known outdoor names like Peter Storm, as they tend to offer consistent sizing and durable fabrics even at the budget end.
Our final list covers both tops and bottoms, and mixes short-sleeve and long-sleeve options so you can build a system that suits how and where you get outside. All of them are firmly in the budget bracket, but should still feel like a worthwhile upgrade over standard T‑shirts and leggings when the temperature drops.
The baselayers below are among the most affordable women’s options we would happily recommend for 2026. Each one offers straightforward, effective warmth at a low price, with the Peter Storm range giving a consistent fit and feel across tops and pants.
Some pieces are about spending as little as possible to add a thermal layer, while others cost only a couple of pounds more but give you more coverage or flexibility. Pick the combination that best matches how cold you run and how often you head outdoors.
A simple, short-sleeve thermal T-shirt that delivers core warmth at the lowest price point in the range. Ideal if you want a cheap, no-fuss baselayer you can wear for both walking and everyday use.
For the price, this Peter Storm short-sleeve thermal T-shirt is a very accessible way to try proper layering without committing to a full set. The crew neck design keeps things simple and comfortable, and the short sleeves make it versatile enough for year-round use, either under a fleece or on its own around the house. Its synthetic construction should trap plenty of warmth around your core while drying faster than a standard cotton tee, which is useful when you are active on the hill. Being from a well-known UK outdoor brand also adds reassurance on fit and fabric quality at this low cost.
Being a short-sleeve top, it does not offer as much overall warmth as a long-sleeve baselayer, especially on very cold or windy days. The basic synthetic fabric is more about warmth than premium breathability, so it may feel a bit warm and clammy if you really push the pace uphill. Without any fancy features, it will not match the softness or odour resistance of pricier technical or merino options.
This short-sleeve thermal tee is ideal if you are on a tight budget but want a noticeable warmth boost for walking, commuting or campsite wear. It suits people who run fairly warm or who plan to wear it under mid-layers most of the time. It is also a good choice if you want a single piece that can double as a casual top when you are travelling or lounging at home.
These women’s thermal pants are an affordable way to add serious warmth to your lower half, whether you are winter camping or just battling icy dog walks. A great partner to any budget thermal top.
The Peter Storm Women’s Thermal Pants are a big step up from ordinary leggings when it comes to warmth, especially for campsite evenings and frosty mornings. They are designed to sit comfortably under walking trousers or waterproof overtrousers without adding too much bulk, so you can keep moving freely. Synthetic fabrics tend to be robust, so these should cope well with regular wear through the colder months. As a budget option, they work particularly well when paired with one of the cheap thermal tops here, giving you full-body insulation for less than you might expect.
As with most thermal pants, these are primarily for wearing under outer layers, so they will not offer much wind protection on their own. The focus on warmth over high-tech moisture management means they can feel a little toasty if you are working very hard or wearing heavy overtrousers. Compared with premium baselayer bottoms, you miss out on extras like articulated knees or odour control.
These thermal pants are perfect for anyone who feels the cold in their legs, especially on winter walks, nights under canvas or standing around at kids’ sports. They suit budget-conscious walkers and campers who are happy with a simple, warm layer under their usual trousers. They are also a great option if you already own a thermal top and want to complete a low-cost set.
A long-sleeve women’s thermal crew neck that offers more coverage for only slightly more money than the very cheapest tops. The purple colour makes it a brighter alternative to basic black thermals.
This long-sleeve Peter Storm thermal top gives you more coverage than a short-sleeve tee for only a small extra outlay, which makes it excellent value. The crew neck and full-length sleeves help seal in warmth, particularly useful on breezy ridges or when sitting still around camp. The purple colour adds a bit of personality and makes it feel less like purely functional underwear, so you are more likely to wear it on its own in a bothy or cabin. As part of the same Peter Storm thermal line, it should share the same straightforward fit and easy layering as the cheaper tops.
Although you are getting more coverage for your money, this is still a basic thermal rather than a highly technical baselayer, so breathability and odour management are relatively simple. The purple colour will not be for everyone and may show through thin mid-layers more than black would. If you run very cold, you might still prefer to pair it with thermal pants rather than relying on the top alone.
This long-sleeve purple top is a strong choice if you want full-arm coverage without paying much more than a basic short-sleeve thermal. It suits walkers and campers who spend long periods outdoors in cool or cold conditions and like the idea of a baselayer that looks a bit more cheerful than black. It is also a good pick if you typically wear your thermals in huts, campervans or at home as a lightweight jumper.
This short-sleeve thermal crew neck in purple gives you the same budget-friendly warmth as the black version, but with a bit more colour. A good option if you prefer lighter layering or run warm.
The purple short-sleeve thermal crew neck offers the same simple warmth as the cheapest black version but with a more colourful look that some will prefer. It is light enough to double as a casual T-shirt while still bringing noticeably more insulation than standard cotton, which adds to its value. Short sleeves make it particularly handy for active days or for those who run warm, as you can layer a fleece or softshell on top without feeling overstuffed. Being part of an established range also means you can expect a familiar fit if you already own other Peter Storm layers.
As with any short-sleeve baselayer, you sacrifice arm warmth compared with a long-sleeve top, which limits its usefulness on the coldest days. The fabric is functional rather than luxurious, so if you have sensitive skin you may notice the difference compared with premium options. The bright colour is not as discreet under light outer layers and may not appeal if you prefer a more understated look.
Choose this purple short-sleeve thermal if you like to keep your layering light but still want more warmth than a standard T-shirt. It is well suited to active walkers who heat up quickly, or anyone who mainly needs extra insulation for their core rather than their arms. It is also a fun, low-cost option if you want a bit of colour in your baselayer drawer.
A straightforward black long-sleeve thermal baselayer top that slots easily into any outdoor wardrobe. It is a safe, budget-friendly choice if you want one top that will work in most cold-weather situations.
The Peter Storm Women’s Long-sleeve Thermal Crew-neck Baselayer Top in black is a classic bit of kit that will slot into almost any wardrobe. The long sleeves and crew neck offer reliable, all-round warmth under a fleece or jacket, making it ideal for general UK walking, commuting and camping. The neutral black colour is easy to pair with other layers and looks tidy enough to wear on its own in a hut or around camp. As a budget piece from a big UK retailer, it keeps cost down while still delivering the kind of dependable warmth you need when the temperature drops.
While very practical, the black colour and plain styling are fairly conservative, so it feels more like pure thermal underwear than a casual top. It is a straightforward synthetic baselayer, so you do not get the natural odour resistance or plush feel of merino. On milder days it might feel too warm under a heavy fleece, so you may need to adjust layers more often.
This black long-sleeve baselayer is ideal if you want one reliable top that will work for almost anything, from winter dog walks to cool summer nights under canvas. It suits anyone who prefers understated kit that pairs easily with the rest of their wardrobe. If you are building a basic cold-weather system on a budget, this is a sensible first purchase before adding extra layers later.
