It has the 2 5/8" Barrel diameter

the gloves easily slide on under a heavier glove

Optimized Barrel Design Creates A Sweet Spot Twice The Size Of The CAT 6

With an updated design

New Under Armour Men's ColdGear Armour Compression Leggings Size X-Small Black X-Small:Black It has the 2 5/8"87% Polyester, 13% Elastane Imported Dual layer fabric with an ultra warm, brushed interior & a smooth, fast drying exterior Stretch mesh gusset & inseam panels provide strategic ventilation 4 way stretch construction moves better in every direction Material wicks sweat & dries really fast Anti odor technology prevents the growth of odor causing microbes