Info
Lvl 2: +20 Max weight
Lvl 3: +20 Max weight
Lvl 4: +20 Max weight
Lvl 5: +20 Max weight
Lvl 6: +20 Max weight
Lvl 7: +20 Max weight
Lvl 8: +20 Max weight
Lvl 9: +60 Max weight
Lvl 10: +100 Max weight
Lvl 11: +1% Natural HP recovery
Lvl 12: +1% Natural SP recovery
Lvl 13: +1% Max HP
Lvl 14: +1% Natural HP recovery
Lvl 15: +1% Natural SP recovery
Lvl 16: +1% Max HP
Lvl 17: +1% Max SP
Lvl 18: +1% ATK
Lvl 19: +1% MATK
Lvl 20: +0.1% Chance to get Stone Shard when hunting the monsters
Lvl 21: +1% Natural HP recovery
Lvl 22: +1% Natural SP recovery
Lvl 23: +1% Max HP
Lvl 24: +1% Natural HP recovery
Lvl 25: +1% Natural SP recovery
Lvl 26: +1% Max HP
Lvl 27: +1% Max SP
Lvl 28: -1% Casting time
Lvl 29: -1% Aftercast delay
Lvl 30: -1% SP consumption
Lvl 31: +0.05% Chance to get Stone Shard and Newstyle Coin when hunting the monsters
Lvl 32: +5% Heal amount from skills
Lvl 33: +1 DEF +5 DEF2
Lvl 34: +1 MDEF +5 MDEF2
Lvl 35: +1% Max HP
Lvl 36: +1% Chance to create ancient equipment
Lvl 37: +2% Movement speed
Lvl 38: +5% Natural HP recovery
Lvl 39: +1% Chance to create ancient equipment
Lvl 40: +1% Max HP
Lvl 41: +1% Chance to create ancient equipment
Lvl 42: +1% Drop rate
Lvl 43: +500 Max weight
Lvl 44: +1% Chance to create ancient equipment
Lvl 45: +1% Max SP
Lvl 46: +1% Chance to create ancient equipment
Lvl 47: -1% SP consumption
Lvl 48: +5% Natural SP recovery
Lvl 49: +3% Movement speed
Lvl 50: +1% Chance to avoid a fatal blow

Backpack info

Backpack – is an outfit that boosts bonuses for your entire account.
Its appearance can be customized separately for each character by obtaining corresponding skins.
All interactions with the backpack are available through the menu, which can be opened by clicking the button next to the minimap or using the command @settings