What's up with the mesh on MLB's spring training hats?

Batting practice caps take starring role in spring training

Boston Red Sox 2023 Spring Training 59FIFTY Fitted - Worldshopi in

You'll either love or hate this year's Cubs spring training hat

Return of MLB spring training has Arizona, Florida hoping for

REACTING TO NEW MLB SPRING TRAINING HATS 2020

NY Yankees MLB 23 5950 OF Spring Training OTC - The Locker Room of

2020 MLB Spring Training & BP Caps — UNISWAG

Look fresh while boasting your excitement for the upcoming Spring Training season with this Boston Red Sox Cross Bone Clean Up hat. '47 designed this cap with an unstructured construction for a relaxed look as well as an adjustable strap to ensure the perfect fit. Best of all, the unique Boston Red Sox embroidery shows off your unwavering fandom in classic style.

47 Navy Boston Red Sox 2022 MLB Spring Training Cross Bone Clean Up Adjustable Hat

2023 MLB Spring Training Hats — UNISWAG

Cincinnati Reds '47 Women's MLB Spring Training Confetti Clean Up

New Era Releases 2023 Los Angeles Dodgers Spring Training Hat

Baseball's New Mesh Cap Results in Sunburn for ChiSox Player

MLB Spring Training 2016 New Hats & Cool Base Jerseys