I believe this is called a 6 panel unstructured hat. I have seen hats by this brand that mac is wearing. I am looking for more hats in this style and structure. :
Milo Mountain Unstructured 6 Panel Hat (Charcoal Grey) – Milo Snow and Skate
Chocolate Chunk Unstructured 6 Panel Snap Back Hat in stock at SPoT Skate Shop
Duck Hat - Bay Flats Lodge
F51 // Full Custom 6 Panel | Snapbacks & Strapbacks — CAPTUER HEADWEAR
6 Panel Unstructured Hat - FED65 – CaliHeadwear
Krooked Krooked Shmolo Unstructured 6 Panel Hat Black - Escapist
Scribe' Unstructured 6 Panel StrapBack Hat (Blue) – MELLOWIST
Atlantis ACFRAC - Fraser Organic Cotton Unstructured 6 Panel Cap | Wordans UK
GOOD FELT APPLIQUÉ UNSTRUCTURED 6 PANEL HAT — Good Vibes Society
Atlantis ACGROV - Groovy Canvas Unstructured 6 Panel Cap | Wordans UK
Unstructured 6 Panel Hat – Public Holiday
Navy Blue 6 Panel Nylon Unstructured Hat Quality Embroidery Snapback Hat - Buy Nylon Unstructured Hat,Quality Embroidery Snapback Hat,Navy Blue Hat Product on Alibaba.com
Faded Unstructured 6 Panel - Powder Blue - Bulk-Caps Wholesale Headwear
Coho Six Panel - Tillak
No Dice unstructured 6 panel cap - Etsy España
Gorra HUF Huf Set Og Cv 6 Panel Hat Negro Black
Unstructured 6 Panel Hat – Public Holiday
Broadcast Brand Signal Script Unstructured 6 Panel Hat - Forest Green – PERMANENT
Unstructured 6-Panel Faded Black Hat – Burkli
Embroidered Groundwork Hat – Groundwork Coffee Co
Basis Unstructured 6 Panel Hat – Off Hours Coffee Project
6-Panel Unstructured Flat Square Bill - Olive - Bulk-Caps Wholesale Headwear
Unstructured 6 Panel Hat – Public Holiday
Beechfield Low Profile 6 Panel Dad Cap - Shirtworks
6 Panel Unstructured - WT92 – CaliHeadwear
