Thumb holes: outdoor gear necessity or marketing gimmick?

Are thumb holes a sign of high performance gear, or a marketing ploy to get you to spend more money?

Where can I buy some good quality trekking equipment? - Quora

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4 Pairs Sunblock Fingerless Gloves for Women UV Protection Wrist Length Gloves Lightweight Fingerless Gloves Non-slip Sun Protetion for Girls Women Summer Outdoor Driving : Clothing, Shoes & Jewelry

Thumbholes, Function or Fashion? Versatile Small Details that Matter. – MuskOx Flannels

Obsessed with gear but it's not sustainable (for wallet nor planet) so today was all about a thorough gear audit and tidy-up, ready for a more parsimonious 2023. : r/CampingandHiking

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The Best Outdoor Gear: Reviews & Guides by Outside Magazine

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Plus Size Tek Gear® Thumb Hole Long Sleeve Tee

3 Pack: Youth Girls Long Sleeve Shirts Active Dry Fit Athletic Performance Clothes Kids Teens Sports Tees with Thumbholes (Set 1, X-Small): Clothing, Shoes & Jewelry

Athleta SPF Protection Long Sleeve Top Thumb Holes Back Pocket Size Small - $32 - From Jolene

Girls 7-16 & Plus Size Mudd® Thumbhole Long Sleeve Thermal Graphic Tee

Essentials, Tops, Athleisure Lila Pullover Brushed Tech Stretch Thumbholes Active Size 2x Refw22