It's quite normal to always have your mobile phone with you these days. But the question remains, where to put your precious tool on multi-pitches or bouldering? Here comes the Syncro chalk bag!
The big closable compartment easily fits today's largest phones like iphone11 or Samsung S21. You can also fit the printed topo for your route, so it's easily on hand. Other advantages of the size include more space for chalk. Hip belt included.