There are so many options of inserts and everyone has their own opinion of which are best, so how can you really know?
With these mixed pack you can try all the main ones and decide for yourself
MIXED COMBO - $20
1 x Microfibre
1 x Hemp/Cotton
1 x Charcoal/Microfibre
1 x Bamboo/Cotton
NATURAL MIX - $24
2 x Hemp/cotton 5 layers
2 x Bamboo/Cotton 4 layers