37.5® Technology has been proven to increase performance at the lactate threshold so you can train and compete longer and harder.

37.5® Technology warms you up when you’re cold, and cools you down when you’re hot so you can get more out of the sport you love.

Suits and work clothes with 37.5® Technology help cool you down when you’re hot so you can tackle a long day, tense meeting, twenty block walk, summer wedding, and run through the airport all without breaking a sweat.

Work clothes with 37.5® Technology help warm you up when you’re cold, helps cool you down when you’re hot, and removes sweat so you can comfortably work hard all day long.

Clothing with 37.5® Technology helps warm you up when you’re cold, helps cool you down when you’re hot, and removes sweat so you’re comfortable all day long.

Bedding with 37.5® Technology warms you up when you’re cold, and cools you down when you’re hot so you can get the most out of every night’s sleep.