JRS Industrial Supplies is a trusted UK provider of high-quality thermal bottoms and leggings, designed as effective base layers for staff working in cold temperatures. Lightweight, flexible, and made to retain heat, our thermal bottoms fit like a second skin, providing warmth and insulation without inhibiting movement and really keeping out the chill.
Base layer thermals are an excellent way to retain body heat and stay warm in cold conditions. Our thermal bottoms come in various colours and styles.
Made from a lightweight fabric blend designed to withstand fluctuating temperatures and wick moisture and sweat, your workforce will stay warm and dry. The modern material moves with the wearer for ultimate comfort. They provide excellent insulation without adding weight.
Our thermal bottoms perform perfectly in active roles and cold environments - whether your staff work outdoors in low temperatures, hiking in the great outdoors, snowboarding on the slopes, or are just exposed to harsh weather on construction sites and transport facilities.
Our thermal bottoms are also the perfect partner for employees working in chilled areas, such as a cold store facility. Team up with our fleece-lined joggers to really keep the chill out!
If your base layers will be visible when worn, then choose items with the blue 'Add a Logo' badge and select customisation options to add your branding at checkout. Order any quantity - from a single pair to bulk purchases. Volume does affect the price, and significant savings are available on bulk purchases. All orders benefit from fast UK-wide delivery.
Browse our selection of thermal bottoms today, part of our full range of PPE and workplace safety clothing. Contact us for a personalised quote and enjoy discounts on customisation when you buy in bulk.
At JRS Industrial Supplies, we understand that a high-quality base layer can make a significant difference to staff in specific roles. We aim to stock only the best-quality thermal base layers, guaranteed to deliver durability, functionality, and excellent value for money.
Here are some of the main features of our thermal bottoms.
Read MoreJRS is a reliable supplier of top-quality thermal brands, clothing designed to deliver exceptional performance and keep your workforce comfortable in harsh working environments. The brands available include Pulsar, Tuffstuff, and Dare2B.
We offer classic style long trousers, base pants, and long johns in black, white, and navy.
Our sizes range from XS to 3XL, depending on the brand.
Our collection includes base thermals made from soft, durable polyester blended with VILOFT, which gently wicks away moisture and sweat, keeping the wearer warm and dry. This fabric allows for fluctuating temperatures and varying activity levels while retaining heat and maintaining a stable body temperature.
We also offer long johns and long pants made using a mix of Easywarm, Polyester, and Elastane. Easywarm fibres retain heat without adding bulk and are breathable for all-day comfort. Elastane promotes full stretch for ease of movement.
Comfortable elasticated waists
Cuffed hems for a secure fit and easy to pair with socks
Lightweight and non-bulky for layering
Close comfort fit
Full stretch materials, allowing for ease of movement
Soft materials that are kind when worn next to the skin
Moisture-wicking technology to keep skin dry
Breathable fabrics to stay cool in fluctuating temperatures
Men's thermals, ladies' designs, and unisex thermals available
Explore our range of thermal underwear, base layers that provide breathable insulation, keeping your team warm whatever the environment. Order from JRS Industrial Supplies today for fast delivery. It’s free if your order is over £150.
We offer professional embroidery and Direct-to-Film (DTF) printing to add your company logo. Look out for items marked with the blue 'Add a Logo' badge to explore customisation options at checkout.
There are two methods of personalisation:
Using state-of-the-art machinery, we apply logos and lettering to almost all our workwear, utilising traditional needles and threads. We can accommodate up to 15 colours, and there's a choice of font sizes.
Our Direct-to-Film (DTF) printing is perfect for complex or oversized designs. The results are durable and long-lasting, with minimal fading, even with frequent washing.
Contact our friendly team to discuss pricing, stock availability, customisation, and bulk order discounts.
Browse our selection of workwear clothes, PPE, and safety equipment today.
JRS Industrial Supplies offers a comprehensive range of thermal bottoms and long johns in designs and sizes to suit your work crew for a variety of active and outdoor jobs. Shop leading brands known for their quality and value. We can also customise your garments using our on-site personalisation service.
Our online ordering service is easy to use, with a simple filter to help you find the garments you want. If you opt for personalisation, then just add artwork to your basket before checkout. Our friendly customer service team is always here to provide support and answer questions on our workwear clothing collection.
Delivery is free for orders over £150. We deliver to all addresses across mainland UK, including the Scottish Highlands.
Thermal bottoms with customisation take around 10 days for delivery. Non-customised items will be with you within 7 days.
Rely on our top-quality thermal bottoms, providing insulation that makes a positive difference to your team. Explore our range of custom bundles, featuring mixed workwear, and enjoy excellent savings on our already low prices. Bulk orders benefit from additional discounts, as well as free delivery when you spend more than £150.
Kit out your team with thermal bottoms that add comfort, not weight, for day-long wear in challenging conditions. Order online today from JRS Industrial Supplies — the only supplier you'll need for quality, customised workwear.
We are proud to serve over 50,000 happy customers throughout the UK
View our quick guide on how to upload and personalise your garments online!
We’ll set up your credit account and ordering portal — tailored to your team.
How do I place a customised order?
Customise your order in 3 simple steps.
1. Select your colour
2. Select your sizes & press the green next button
3. Press the add branding option to begin.
Note: we will always send a design proof for approval before production begins.
If you have any issues placing your order online, please contact us.
When will my order be dispatched and delivered?
For customised items, for standard embroidery and print delivery the current lead time is 15-20 working days from logo approval. For express embroidery and print delivery the current lead time is within 3 or 5 working days depending on the option selected on checkout. This will be subject to stock availability, but any delays will be communicated to you straight away.
A design proof will be sent for approval prior to production.
For non-customised items, please allow 3-5 working days for your order to arrive. If you require faster delivery please contact us directly.
Please note you will receive an e-mail notification with your tracking reference as soon as your order has been dispatched.
Do you charge for delivery?
Deliveries are free to UK mainland on all orders over £150.
Please note we use express delivery services with full tracking to ensure you are notified at all times. For more information on delivery please click here.
Can I change my order?
Please contact us as soon as possible if you have made a mistake with your order.
Orders can be amended providing they have not already been customised.
A small fee may apply if we do not have the item in stock and are required to place an additional order with our supplier.
Can I return my item?
Returns can be made within 14 days providing the goods have not been embroidered or printed.
Please note that goods must be returned within the original packaging.
If you would like to initiate a return please view our instructions by clicking here.
NOTE - delivery charges of £6.99+VAT are non-refundable and will be deducted from your refund.
What if my item is faulty?
If you have received an item that is faulty or incorrect, please get in touch as soon as possible so that we can rectify the issue.
What is the status of my return?
Returns and refunds will be processed within 5 working days of receiving your item. If you have not heard anything within 5 working days, please feel free to contact our team for an update.
Application Methods & Artwork Guidelines
Please click here to view our application methods and artwork guidelines page.
Do you provide samples?
We want to ensure that you are 100% satisfied with your order. We have no minimum order fee, meaning you can place a smaller order to test the size and quality of your chosen garment prior to committing to a larger order. For more information please contact our sales team.
What if I don’t have a logo?
Don’t worry if you don’t already have a logo. You can choose from several fonts to create a text logo, just select this method when you are placing your order.
What size will my logo be?
Most standard breast logos will be approximately 8-12cm wide.
For large front and back designs the approximate width will be 20-25cm and the height will be adjusted to suit the width.
The size of your logo will be shown on the artwork proof that our design team will send you for approval before production.
Please note the size can be amended on request.
What payment options do you accept?
We accept all major credit cards including Mastercard and Visa. In addition, we can accept payments by Bank Transfer, Apple Pay and PayPal.
Please note for security reasons we cannot accept card details over the phone. Telephone orders are welcomed and a proforma invoice will be sent for payment ahead of your order being processed.
Can I open a credit/trade account?
Absolutely! We want to make your ordering process as simple as possible. As such, we offer an extensive free account management service. Credit accounts will be subject to order history and a credit check by an independent provider.
How long will my refund take?
Refunds are processed within 5 working days of receiving your goods in our warehouse. From there please allow a few days for it to appear in your bank account. If you have any issues with your refund please contact us directly.
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