Keeping children dry does not have to be expensive. The cheapest kids’ waterproof trousers in 2026 still offer reliable protection for school trips, camps and soggy dog walks, as long as you choose carefully.
This guide focuses on junior waterproof legwear that keeps costs down without cutting corners on the basics: staying dry, fitting comfortably over other clothes and being easy to pack. We have narrowed things down to a small set of budget-friendly choices from Go Outdoors that cover simple packable options through to sturdier overtrousers.
Each pick trades some features for a lower price, but they all feel like sensible buys rather than false economies. The key is matching the right pair to how often and how hard your child will use them.
These recommendations are based on a close look at the specifications, design details and value for money of the junior waterproof trousers available at Go Outdoors, rather than simply chasing the lowest price tag. We pay attention to how the fabric, cut and features will work in real British weather, from playground showers to wet weekends under canvas.
We also consider brand track record and owner feedback where it is available, so the models we highlight are those that should keep children dry without major frustrations. The aim is to point you towards cheap kids’ waterproof trousers that you will not regret buying a few months down the line.
By focusing on practical features and realistic use, we aim to flag good-value options that do the job, and to be honest about the compromises that come with spending less.
We started by looking at the lowest priced kids’ waterproof trousers and overtrousers at Go Outdoors, then filtered out anything that appeared too flimsy or lacking in basic weather protection. That left a core set of models that provide meaningful waterproofing and coverage at genuinely budget-friendly prices.
From there, we compared design details such as whether they pack down small, how easy they are to pull on over other layers and how versatile they are for school, camping and general outdoor use. Where there are similar prices, we looked for subtle differences in cut and likely durability to help you choose the best option for your child.
We have also made sure to include a mix of simple packable trousers for just-in-case use and slightly more robust overtrousers for kids who are outdoors a lot. All of them sit firmly at the cheaper end of the range, but should still feel like money well spent.
Below are the kids’ waterproof trousers that stand out as the best value at the budget end of the Go Outdoors range. Some are the absolute lowest-price packable options, ideal for stashing in a school bag, while others cost a little more but offer a more substantial feel for regular outdoor adventures.
Use the summaries to decide whether ultra-light packability or extra robustness matters more for your child, and pick the pair that best balances price and practicality for your family.
A low-cost, packable pair of kids’ waterproof trousers that are ideal for stashing in a school bag or rucksack for sudden showers.
At around eighteen pounds, these Peter Storm Kids Packable Waterproof Pants are one of the cheapest ways to keep children’s legs dry when the weather turns. The packable design means they squash down small, so they are easy to tuck into a school bag or daysack without taking up precious space. Being black, they hide mud and scuffs well and pair easily with any jacket or school uniform. For occasional camps, school trips and weekend walks, they deliver the essential waterproof coverage you need without overcomplicating things or overloading your budget.
Like most budget packable waterproof trousers, these will not match the breathability or long-term durability of more expensive hiking-specific models. The light fabric can feel a bit clammy if your child runs around in them for long periods, and they are best seen as a backup shell rather than something to wear all day. If your child is out in harsh weather regularly, one of the slightly more substantial options further down this list could be a better investment.
Ideal for parents wanting the cheapest practical way to keep kids dry on the school run, at camp or during occasional walks. They are a great choice if you want a pair to live permanently in a bag or car boot as a lightweight backup. If your main priority is keeping upfront costs down while still getting genuine waterproof coverage, these are a strong fit.
Navy packable waterproof trousers for kids that offer the same wallet-friendly protection in a versatile, smart-looking colour.
The navy Peter Storm Kids’ Packable Waterproof Pants offer the same great value as the black version, with a colour that works well for school and outdoor clubs. Like the black pair, they are designed to pack down neatly, making them a practical just-in-case layer for unpredictable showers. The light, simple construction means kids are less likely to complain about bulk or weight, and you are more likely to throw them in a bag on the way out. For families wanting a cheap backup pair that still looks smart, they tick the right boxes.
You are getting a very simple, lightweight shell here, so do not expect reinforced areas, fancy linings or premium zips. In heavier or prolonged rain, they may eventually wet out faster than pricier alternatives, especially if not cared for properly. Active children may also find them a touch flimsy for regular rough-and-tumble play, so they are better for occasional use than constant abuse.
Best for families who like the idea of ultra-affordable packable waterproof trousers but prefer a navy colour that blends easily with school kit and outdoor uniforms. They suit children who need something light and unobtrusive for trips, residentials and family holidays. If you want a simple, good-value option your child is happy to wear, this is a safe bet.
A step up from simple packable trousers, offering a more trouser-like feel while still keeping the price comfortably low.
The Peter Storm Kids Storm II Trousers in navy feel more like proper trousers than emergency overtrousers, yet they remain firmly in the budget bracket at around twenty-two pounds. They are likely to offer a slightly more structured fit than basic packables, which can be more comfortable for longer walks or days out. The navy colour is practical for hiding marks and works well with most outdoor jackets. For a modest step up in price, you are getting something that children can comfortably wear for extended periods rather than only in a sudden downpour.
Although they feel like a step up from basic packables, the Storm II Trousers are still a budget option and will not rival high-end kids’ mountain waterproofs for ruggedness or breathability. They cost a little more than the very cheapest trousers here, so if you only need something to sit in a school bag for emergencies, you might not see the full benefit of the upgrade. Heavy, regular hill use could expose their limitations sooner than with a premium pair.
A sensible pick for kids who are outdoors a bit more often and may spend longer walking in the rain, but where the budget still has to stretch carefully. They suit families who are willing to pay a few extra pounds over the very cheapest models for a more trouser-like feel. If your child does regular weekend walks or outdoor clubs, these offer a nice balance of price and comfort.
Black Storm II trousers that give junior walkers affordable, reliable waterproofing with a more grown-up look and everyday versatility.
The black Peter Storm Kids’ Storm II Trousers bring a smart, understated look that older children and teens may prefer, while still keeping costs very manageable. Sitting at the same price point as the navy version, they are a sensible option if you want junior legwear that can double up for school trips, DofE-style training or general outdoor use. The more trouser-like cut should help them feel less flappy than ultra-light packables, which often makes kids more willing to keep them on in persistent rain. For families who want one affordable pair to cover a bit of everything, they are a strong candidate.
These Storm II Trousers are not the absolute cheapest on the page, so families on the tightest budgets may gravitate towards the pure packable options instead. As with the navy version, the fabric and construction are geared towards value rather than extreme durability, so you should not expect them to last through years of heavy outdoor club use without signs of wear. They are also likely to feel warmer and less airy than top-end breathable shells if worn during hard exercise.
Well suited to older children and teens who want waterproof trousers that look a little more grown-up, without putting too much pressure on the family budget. They are a good all-round choice if you want one reasonably priced pair to cover school trips, light hiking and general wet-weather use. If you are shopping for a do-it-all option that still comes in at the cheap end of the market, they are worth a close look.
More substantial waterproof overtrousers for kids who are out in the wet more often, still at a sensible price point.
Peter Storm Kid’s Waterproof Overtrousers are the most substantial option in this list, yet they still come in under thirty pounds, which is good going for something built for more regular outdoor use. As classic overtrousers, they are designed to pull on over other layers, giving you flexibility as the weather changes. The slightly higher price suggests a more durable or feature-rich design than the very cheapest packable models, which should appeal if your child is out in the wet most weekends. For value-focused families looking for a tougher-feeling option without jumping to premium prices, they make a lot of sense.
Costing more than the other trousers featured here, these overtrousers may feel like overkill if your child only needs waterproof protection a handful of times a year. The extra robustness can also mean a little more bulk and weight, which is less ideal if you purely want an emergency pair to live at the bottom of a school rucksack. If your priority is the absolute lowest price and smallest pack size, one of the simpler packable models will suit you better.
Best for kids who spend a lot of time outside in poor weather, whether on regular walks, outdoor clubs or frequent camping trips. They make sense if you are happy to spend slightly more than absolute rock-bottom prices in return for overtrousers that feel a bit tougher and more capable. If you want a budget-friendly option that you can rely on for repeated use through the season, these are likely to suit you well.
