Gone are the days when you have to choose between being comfortable and dressing up. You don’t want to spend your day just waiting to get out of your work clothes—your clothes should give you confidence!
Enter the Banana Republic Core Temp line. These high-performance products feature temperature-regulating technology while still fitting seamlessly into the office world. Everyone has an ideal core temperature—37.5 degrees Celsius—that helps us perform at our best . This can be hard to regulate in fluctuating conditions, especially when you need to be wearing dressier attire that doesn’t necessarily go hand-in-hand with all-day comfort.
Business casual clothes typically include well-fitted khakis or slacks and a button-down shirt or polo shirt. Shorts or skirts should hit at the knees or below, and often a quarter-zip or pull-over sweater will serve you well as layering options if the temperature in the office fluctuates throughout the day. While it’s possible to find clothes that fit these parameters and are comfortable throughout the day, it certainly isn’t always easy.
Banana Republic has long been known for simple, sleek businesswear—not usually associated with thermoregulating clothing. The Core Temp line changes that. These items will help keep your body at the ideal core temperature while staying wrinkle-free and comfortable. The elements in this line combine Banana Republic’s classic designs with 37.5 Technology built right into the fabric.
This is the same technology used in activewear for extreme sports, workwear, and performance-oriented garments used during activities with high-energy output. Active particles sourced from volcanic minerals help cool you down if you get too warm and warm you up when your core temperature dips too much. Since these particles are built into the fabric itself, the core-regulating technology won’t degrade over time.
This blend of style and function come together in the latest offerings from Banana Republic, proving that performance materials aren’t just for activewear. Just because you’re living life on the dressier side of things, you don’t need to be uncomfortable.
Here are a few of our favorite pieces of clothing from Banana Republic’s Core Temp line. These are all designed for extended wear throughout the day—from the morning commute to the full day at the office to wherever the post-work happy hour takes you.

11″ Core Temp Short

These lightweight shorts are the perfect length for office wear, and they will easily take you out of the office to an after-work rendezvous. They’re wrinkle-resistant, soft, and lightweight, with front off-seam pockets and rear welt pockets with a zipper closure on the right side.

Aiden Slim Core Temp Pants

Looking for full-length pants? This pair is as close to universally flattering as you can get, with a medium rise and a slightly tapered leg. Plus, they come in 11 different colors to keep your workday outfits as varied and interesting as possible.

Core Temp Quilted Bomber Jacket

Think of this as your most versatile jacket layer. This is a water-resistant, lightweight piece that looks sharp as outerwear, but functions fantastically as a mid-layer when the temperature drops substantially. It features a stand collar with corduroy lining and ribbed-knit cuffs.

Slim Core Temp Blazer

This all-day, fitted piece stays sleek and wrinkle-resistant at all hours of the day, offering a breathable, lightweight top layer that maximizes comfort from morning until night. This blazer works well for warmer weather, and you’ll be able to keep it on throughout the day.

Slim Tapered Core Temp Non-Iron Dress Pant

In the market for an easy keeper? Look no further than these low-maintenance, flattering dress pants. This versatile pair of pants can go from a casual office environment to more formal events, fitting in the whole time.

Core Temp Waffle-Knit T-Shirt

Take it a bit more casual while still looking your finest. This soft, comfortable waffle-knit top can be paired with a collared shirt perfect for fall days, and it will dry quickly if you work up a sweat on your lunchtime walk. Flatlock seams offer a chafe-free fit, and the 37.5 Technology will keep you comfortable all day, no matter what the office thermostat decides to do.
These are just some of the highlights in the Core Temp line. See for yourself all that Banana Republic has to offer—and feel better all day long.
Written by Matcha for 37.5.