在秋天到来之前考虑升级我的徒步装备。是先投资一个更轻的背包更明智，还是买更好的靴子？我现在的背包是2.2kg，在较长的路线中把我的肩膀折磨得很惨。预算很紧，这个季节我只能选一个。你会先升级哪个？
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Thinking about upgrading my hiking setup before fall. Is it smarter to invest in a lighter backpack first or better boots? My current pack is 2.2kg and destroys my shoulders on longer trails. Budget’s tight so I can only pick one this season. What would you upgrade first?