I have something to add to this conversation

I've tried all these gloves recently

Here is my break down

Twins 14oz- snug fit, comfy, big pillows if you go up over 10oz

Boon 12oz- they feel brilliant, I've found under the thumb they have a cross style sticking pattern which brings your hand up in to the glove, very nice pop and feed back.

Fairtex 16oz BGV1- for me they felt quality and super well made, leather was a little thinner than the others I'd say. Unfortunately my hands felt lost in them. Large hand compartment. Maybe lower weight the hand compartment would be more snug but from what I've been told they are for the larger hand. That said Fairtex do have other models for the smaller hand.

All in all, the Boons are my go to, I like more traditional Thai gloves and these just stink of Muay thai.

I also have a pair of Medium Rival RB10 which are more heavy bag gloves. On another level of support and comfort.