The Molecule 45L is our new lightweight and highly modular backpack for hiking, trekking or travelling. Considering how light it is, it is remarkably comfortable to carry. It is intended for more experienced users who are ready to switch to ultralight. With its modular compression straps and user-friendly features, this backpack is ready for anything – from a short weekend trip to a cross-continental trek. Its sophisticated back system offers great dynamic comfort and a roll-top with zipper allows you to safely carry additional gear (+10L) or compress your load by making it more compact. Waist-belt pockets and compression straps are completely removable.


  • Reinforced CORDURA® bottom
  • Close to the back, padded back panel with central air channel & air mesh for ventilation
  • Padded shoulder straps with quick-adjust chest straps
  • Shoulder pocket for storing 0,5L bottles, snacks or phone
  • Hip belt with removable stretch mesh & water-resistant pockets
  • Roll-top closure with zipper to allow max stuffing (+10L) & removable side compression straps for securing the load
  • Removable top compression strap
  • Top pocket with key clip
  • Internal hydration sleeve
  • Two stretch side pockets made of durable Power Mesh
  • Four daisy chains for versatile placement of compression straps
  • Side compression straps can be closed over the front


  • BACK PANEL LENGTH - S: 54cm, R: 60cm, L: 67cm
  • RECOMMENDED LOAD - 8 - 18kg
  • APPROX. WEIGHT - S: 1110g, R: 1190g, L: 1270g


  • Bottom shell: 500D CORDURA® Nylon
  • Main shell: 210D Ripstop Robic Nylon (100% recycled, 3rd party certified) - Blue Sign® Approved

We aim to ship out all orders placed before 2pm the same working day! For shipments in the United Kingdom mainland, we use Royal Mail Tracked 24 service (DPD Next Day for larger items and items that weigh over 4KG). Please see our shipping policy for more details.

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Bach Molecule 45L Pack (Sage Green)

RRP: £190.00 (Save £0.01) £189.99

Item is in stock Only 0 left in stock Item is out of stock Item is unavailable

SKU: 420990-7624001-SG
Barcode: 7616185043980


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