The size is a Small but the BlackMilk sizing chart suggests that is a AU10/USA6/EU38
Limited piece is it is super rare and cannot be purchased anymore
GF Bombers are made from lightweight, silky smooth printed fabric. They're cut for ladies, so they're a bit shorter than the BF Bombers.
Composition: Main: 82% Polyester, 18% Elastane; Secondary: 85% Nylon, 15% Elastane; Trim: 92% Nylon, 8% Elastane
Made in: Australia