The Science of Temperature-Controlled Gifting
In the promotional merchandise industry, the most valuable products are those that solve daily, real-world challenges while maintaining structural durability. This is exactly why isothermal products have become an indispensable staple for corporate hospitality, client gifting, and employee rewards. But what exactly is the technology behind these high-performance items? Isothermal design relies on advanced double-walled vacuum insulation or multi-layered thermal lining to stop heat transfer. By trapping a vacuum layer between two walls of stainless steel, copper, or engineered composites, conduction and convection are entirely blocked.
This specialised thermal barrier ensures that hot beverages stay steaming hot for up to 12 hours, while chilled drinks or fresh meals remain perfectly crisp and cold for over 24 hours. Because search trends show that specific product terms capture the highest user intent, we focus directly on premium hardware like company branded travel mugs and branded cool bags. These items provide immediate utility in everyday routines—whether on a morning office commute, during executive travel, or at a weekend team event. Explore our certified collection to discover how easily your brand can master temperature control.
In the promotional merchandise industry, the most valuable products are those that solve daily, real-world challenges while maintaining structural durability. This is exactly why isothermal products have become an indispensable staple for corporate hospitality, client gifting, and employee rewards. But what exactly is the technology behind these high-performance items?
Read more about double-walled vacuum insulation physics, extended thermal retention windows, and commuting hardware
Isothermal design relies on advanced double-walled vacuum insulation or multi-layered thermal lining to stop heat transfer. By trapping a vacuum layer between two walls of stainless steel, copper, or engineered composites, conduction and convection are entirely blocked.
This specialised thermal barrier ensures that hot beverages stay steaming hot for up to 12 hours, while chilled drinks or fresh meals remain perfectly crisp and cold for over 24 hours. Because search trends show that specific product terms capture the highest user intent, we focus directly on premium hardware like company branded travel mugs and branded cool bags. These items provide immediate utility in everyday routines—whether on a morning office commute, during executive travel, or at a weekend team event. Explore our certified collection to discover how easily your brand can master temperature control.
BELFAST. 2-in-1 backpack with thermal bag included that can be used together or separately
2-in-1 backpack with thermal bag that can be used together or separately.Backpack in 900D recycled polyester with pocket and bottom in high-density 600D recycled polyester with a water-resistant finish. The backpack is fully padded and has a 210D recycled polyester lined interior. It has 2 main compartments: a padded back compartment for a laptop up to 17'3" and a spacious front compartment with a removable divider that allows you to store your cooler bag at the bottom (included). Front zippered pocket with reflective detail. Side pocket ideal for carrying your bottle and back with extra padding and trolley strap. Capacity up to 20 L.900D recycled polyester padded cooler bag with PEVA insulation. Capacity 4'5 L. Backpack: 300 x 460 x 160 mm | Thermal bag: 240 x 150 x 140 mm
BISMAR Kühltasche
Stylish and sustainable cooler bag made from RPET polyester with a mottled design. Featuring isothermal front and inner pockets and an adjustable carrying strap for optimal convenience.
BISMAR Kühltasche
Stylish and sustainable cooler bag made from RPET polyester with a mottled design. Featuring isothermal front and inner pockets and an adjustable carrying strap for optimal convenience.
Black carton giftbox Kurt
Black carton gift box including 3 items: a stainless steel vacuum-insulated double-walled drinking bottle (640 ml) with a PP lid, silicone strap, and bamboo detail on the top. The inside is stainless steel 304, the outside stainless steel 201; an aluminium twist ballpen with a matte finish, blue writing, and a bamboo detail on the clip; and an rPET (300D) notebook (approx. A5) with 80 lined pages and a foldable cover turning into a phone holder, featuring bamboo detail on the cover.
Black+Blum 16L Insulated Tote/ Cooler Bag
This spacious 16L bag is designed to handle anything your day brings. With an insulated inner compartment, it keeps cold or wet items separate—perfect for a beach trip, a picnic in the park, or even an overnight stay. The bag is made from fabric using 13 recycled plastic bottles and features reinforced stitching and an extra-wide, comfortable shoulder strap, making it strong enough for heavy groceries or a few bottles of wine. It’s 100% leakproof thanks to welded seams and a sealed zip, and it’s both sturdy and versatile. Available in four colours, it also pairs perfectly with a matching lunch bag. The interior includes a split compartment to separate cool or damp contents, and there’s an inner pocket for easy access to your essentials. A water-resistant reinforced base ensures durability on any surface, while the water-repellent insulated lining is easy to wipe clean. It even fits laptops up to 40 cm.
Black+Blum 16L Insulated Tote/ Cooler Bag
This spacious 16L bag is designed to handle anything your day brings. With an insulated inner compartment, it keeps cold or wet items separate—perfect for a beach trip, a picnic in the park, or even an overnight stay. The bag is made from fabric using 13 recycled plastic bottles and features reinforced stitching and an extra-wide, comfortable shoulder strap, making it strong enough for heavy groceries or a few bottles of wine. It’s 100% leakproof thanks to welded seams and a sealed zip, and it’s both sturdy and versatile. Available in four colours, it also pairs perfectly with a matching lunch bag. The interior includes a split compartment to separate cool or damp contents, and there’s an inner pocket for easy access to your essentials. A water-resistant reinforced base ensures durability on any surface, while the water-repellent insulated lining is easy to wipe clean. It even fits laptops up to 40 cm.
Black+Blum 16L Insulated Tote/ Cooler Bag
This spacious 16L bag is designed to handle anything your day brings. With an insulated inner compartment, it keeps cold or wet items separate—perfect for a beach trip, a picnic in the park, or even an overnight stay. The bag is made from fabric using 13 recycled plastic bottles and features reinforced stitching and an extra-wide, comfortable shoulder strap, making it strong enough for heavy groceries or a few bottles of wine. It’s 100% leakproof thanks to welded seams and a sealed zip, and it’s both sturdy and versatile. Available in four colours, it also pairs perfectly with a matching lunch bag. The interior includes a split compartment to separate cool or damp contents, and there’s an inner pocket for easy access to your essentials. A water-resistant reinforced base ensures durability on any surface, while the water-repellent insulated lining is easy to wipe clean. It even fits laptops up to 40 cm.
Black+Blum 16L Insulated Tote/ Cooler Bag
This spacious 16L bag is designed to handle anything your day brings. With an insulated inner compartment, it keeps cold or wet items separate—perfect for a beach trip, a picnic in the park, or even an overnight stay. The bag is made from fabric using 13 recycled plastic bottles and features reinforced stitching and an extra-wide, comfortable shoulder strap, making it strong enough for heavy groceries or a few bottles of wine. It’s 100% leakproof thanks to welded seams and a sealed zip, and it’s both sturdy and versatile. Available in four colours, it also pairs perfectly with a matching lunch bag. The interior includes a split compartment to separate cool or damp contents, and there’s an inner pocket for easy access to your essentials. A water-resistant reinforced base ensures durability on any surface, while the water-repellent insulated lining is easy to wipe clean. It even fits laptops up to 40 cm.
Black+Blum 6.7L insulated Lunch/Cooler Bag
This 6.7L insulated lunch bag is made from recycled PET, such as used plastic bottles, and offers plenty of space for everything you need to get through the day—whether it’s a lunch box, water bottle, fruit, or snacks. It’s the ideal insulated lunch bag for both kids and adults, and it’s now available in four colours with matching tote bags. Inspired by the design of dry bags, the roll-top closure and welded lining make the bag 100% leak proof when stored upright. The insulated interior helps maintain the temperature of the contents, keeping everything nice and cool. The food-safe and water-repellent inner surface is easy to wipe clean, and the roll-top design makes it simple to carry, compress, or attach to another bag or even your bicycle handlebars.
Black+Blum 6.7L insulated Lunch/Cooler Bag
This 6.7L insulated lunch bag is made from recycled PET, such as used plastic bottles, and offers plenty of space for everything you need to get through the day—whether it’s a lunch box, water bottle, fruit, or snacks. It’s the ideal insulated lunch bag for both kids and adults, and it’s now available in four colours with matching tote bags. Inspired by the design of dry bags, the roll-top closure and welded lining make the bag 100% leak proof when stored upright. The insulated interior helps maintain the temperature of the contents, keeping everything nice and cool. The food-safe and water-repellent inner surface is easy to wipe clean, and the roll-top design makes it simple to carry, compress, or attach to another bag or even your bicycle handlebars.
Black+Blum 6.7L insulated Lunch/Cooler Bag
This 6.7L insulated lunch bag is made from recycled PET, such as used plastic bottles, and offers plenty of space for everything you need to get through the day—whether it’s a lunch box, water bottle, fruit, or snacks. It’s the ideal insulated lunch bag for both kids and adults, and it’s now available in four colours with matching tote bags. Inspired by the design of dry bags, the roll-top closure and welded lining make the bag 100% leak proof when stored upright. The insulated interior helps maintain the temperature of the contents, keeping everything nice and cool. The food-safe and water-repellent inner surface is easy to wipe clean, and the roll-top design makes it simple to carry, compress, or attach to another bag or even your bicycle handlebars.
Black+Blum 6.7L insulated Lunch/Cooler Bag
This 6.7L insulated lunch bag is made from recycled PET, such as used plastic bottles, and offers plenty of space for everything you need to get through the day—whether it’s a lunch box, water bottle, fruit, or snacks. It’s the ideal insulated lunch bag for both kids and adults, and it’s now available in four colours with matching tote bags. Inspired by the design of dry bags, the roll-top closure and welded lining make the bag 100% leak proof when stored upright. The insulated interior helps maintain the temperature of the contents, keeping everything nice and cool. The food-safe and water-repellent inner surface is easy to wipe clean, and the roll-top design makes it simple to carry, compress, or attach to another bag or even your bicycle handlebars.
Black+Blum Explorer Flask Duo 1L
This 1L vacuum insulated stainless steel flask is built for every kind of adventure—whether you're heading out on the trail, relaxing at the beach, or tackling the slopes. With its reinforced structure and durable design, it keeps drinks piping hot or ice cold for up to 24 hours. Completely leak proof, it features a steel cap lid with an easy pouring mechanism and two double-walled stainless steel cups for sharing. The wide-based cups offer extra stability on uneven ground, while a thick nylon strap makes it easy to carry or pour. A silicone gasket prevents drips when the cups are stored, and the flask is dishwasher-safe once the strap is removed.
Black+Blum Explorer Insulated Bottle Large 850ml
It’s all in the name, this products was made for adventures. We wanted to create something which was a step above our other steel bottles, to deal with the toughest environments. Fully insulated to keep drinks hot or cold for hours, it comes in 2 generous sizes. The smooth rim with inside thread makes staying hydrated a dream and, as always, the lid is 100% leakproof. This bottle is truly at home in the great outdoors and will last a lifetime. Handwash only
Black+Blum Explorer Insulated Bottle Large 850ml
It’s all in the name, this products was made for adventures. We wanted to create something which was a step above our other steel bottles, to deal with the toughest environments. Fully insulated to keep drinks hot or cold for hours, it comes in 2 generous sizes. The smooth rim with inside thread makes staying hydrated a dream and, as always, the lid is 100% leakproof. This bottle is truly at home in the great outdoors and will last a lifetime. Handwash only
Black+Blum Explorer Insulated Bottle Large 850ml
It’s all in the name, this products was made for adventures. We wanted to create something which was a step above our other steel bottles, to deal with the toughest environments. Fully insulated to keep drinks hot or cold for hours, it comes in 2 generous sizes. The smooth rim with inside thread makes staying hydrated a dream and, as always, the lid is 100% leakproof. This bottle is truly at home in the great outdoors and will last a lifetime. Handwash only
Black+Blum Insulated Leakproof Travel Cup Stainless Steel
The perfect on-the-go cup for taking your coffee and tea with you, or cut down on disposable single-use cups, by handing it over to be filled by your favourite barista. It will keep your drinks hot for 5 hours and is a pleasure to drink from. The top is 100% leakproof, lockable and easy to disassemble to clean. This is a no-nonsense, built-to-last, designed to function travel cup that will last you a lifetime. 340ml. Handwash only
Black+Blum Insulated Leakproof Travel Cup Stainless Steel
The perfect on-the-go cup for taking your coffee and tea with you, or cut down on disposable single-use cups, by handing it over to be filled by your favourite barista. It will keep your drinks hot for 5 hours and is a pleasure to drink from. The top is 100% leakproof, lockable and easy to disassemble to clean. This is a no-nonsense, built-to-last, designed to function travel cup that will last you a lifetime. 340ml. Handwash only
Black+Blum Insulated Leakproof Travel Cup Stainless Steel
The perfect on-the-go cup for taking your coffee and tea with you, or cut down on disposable single-use cups, by handing it over to be filled by your favourite barista. It will keep your drinks hot for 5 hours and is a pleasure to drink from. The top is 100% leakproof, lockable and easy to disassemble to clean. This is a no-nonsense, built-to-last, designed to function travel cup that will last you a lifetime. 340ml. Handwash only
Extra thin 15W charging base, in recycled aluminum, customizable with mirror logo.
Transparent 15W induction base in acrylic, customisable with an LED logo.
15W MagSafe charger in recycled aluminum, customizable with LED logo.
15W wireless charging base made with PU-leather and ABS with soft-touch finishing, and customizable with a ligthing logo.
15W wireless charging base made with ABS soft-touch and acrylic customizable with an offset ligthing logo. Thanks to the acrylic plate and the offset printing, this base offers a high-quality digital logo.
15W wireless charging base made with metal and acrylic customizable with an offset ligth-up logo. Thanks to the acrylic plate and the offset printing, this base offers a high-quality digital logo.
15W wireless charging base made with bamboo and acrylic customizable with an offset ligthing logo. Thanks to the acrylic plate and the offset printing, this base offers a high-quality digital logo.
