Retro Muay Thai Shorts Question

[juliaaaa]

Hey everyone, I've recently gotten into Muay Thai and love the classic, retro style of the sport's shorts. I'm looking to buy a pair but want to make sure I'm getting authentic, high-quality ones. Does anyone have recommendations for brands or stores that specialize in retro Muay Thai shorts? Also, what should I look for in terms of material and fit to ensure they're suitable for training and sparring?