Black Diamond Equipment
The ultimate for cold cragging days or for climbers who suffer from cold hands

The ultimate for cold cragging days or for climbers who suffer from cold hands
Building on the responsive freeride performance of our best-selling Boundary skis, our Boundary Pro Series features powerful, hard-charging models designed with the help of our pro athlete team.


Sure, we’ve all been there.

You’re lured in by sending temps then BAM! You’re hanging on the end of the rope due to a case of numb fingers. Well, at Black Diamond, we set out to once and for all crush the problem of numb fingers, and now we’re proud to introduce the Hot Forge Heated Chalk Bag.

Built for climbers who suffer from cold hands, or those who are in constant pursuit of high friction but still battle with numb tips, the Hot Forge Heated Chalk Bag combines our innovative 3-level heating system utilized in our ground-breaking Solano gloves, with the technology of our Hot Forge insulating jacket, to give you the ultimate sending machine.




Black Diamond is launching a new battery life testing protocol. In 2002 we collaborated with other manufacturers to create a testing method to define 'beam distance' and 'battery runtime'. We collectively called this the "Moonlight Standard" which was based on the amount of light from a full moon on a clear night. In 2009 a new protocol was approved by ANSI (American National Standards Institute); BD was part of the creation of this standard. This new FL-1 Standard will now be adopted by BD and other outdoor-industry manufacturers and we will include battery life testing down to 10% of the original output.

From the time the product reaches 10% of original light output, we will continue to run the battery until it reaches a threshold of 0.25 lux at 4 meters. This is the amount of light we feel is usable for many activities. This new " Reserve Time" will also be represented on packaging and other marketing materials. Testing "beam distance" to the FL-1 protocol is the same as our original Moonlight Standard, again using 0.25 lux as the cutoff mark.

By combining 80 gram insulation with our Hot Forge design, we landed on a bag that not only houses the heating element, but also traps heat effectively. What we created is a revolutionary heated chalk bag with three different temperature settings depending on the level of numbing out you typically experience given the ambient climbing conditions.

"With the help of BD and their team of top-notch engineers and designers, I now have the ultimate secret weapon for sending."




300 g Loose White Gold Chalk


Pure, uncut and ready to rock. Learn More
Item# BD5504950000ALL1
(VAT included, shipping costs excluded)


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Hot Forged Heated Chalk Bag Slot 7