The Black Diamond Onyx rucksack

Black Diamond has added two new models to its Access series of rucksacks aimed at multi-day backpackers.

The women’s Onyx and men’s Mercury come in three volumes and are aimed at the no-compromise user who needs large capacity packs offering freedom of movement.

Both models come in 55-, 65- and 75-litre volumes, with a manufacturer’s stated weight of 2.1kg for the men’s 65-litre Mercury.

They feature the company’s new ergoACTIV XP suspension, which uses a 3D ball joint and urethane elastomers in the waistbelt to achieve what the manufacturer says is the ultimate balance of mobility, stability and dynamic load transfer.

The packs also feature the new highly flexible SwingArm Shoulder Straps offering increased comfort.

Black Diamond said: “Other key design features of the new packs include easy and convenient access to essential belongings at the top or through a large zippered front panel, and internal compartment divider and organiser pockets make the business of finding all your essentials stashed away incredibly easy.

“Essential added waterproof protection comes from taping on the pack’s top and bottom which shields against any unexpected sudden downpour which can frequently occur when high up in the mountains.

“Accessory attachment details include a retractable trekking pole and ice axe loop, sleeping pad straps and hydration compatibility.”

The Mercury pack

The 75-litre packs retail at £199; the 65-litre models are £179, and the 55-litre rucksacks cost £159.

Stockist information can be obtained by ringing 01629 580484.