Carbon38

Carbon38 is a luxury activewear and performance fashion brand founded in 2013 by Katie Warner Johnson in Los Angeles, California. The brand brings fashion to function across a curated collection of premium activewear from both its own label and global designer brands. Carbon38 is known for its proprietary fabrics — Melt, Takara Shine, and Diamond Compression — and its fashion-forward approach to athleisure that bridges the gap between studio and street. Products range from $88 to $995, positioning Carbon38 in the premium-to-luxury tier of women's activewear.

Brand Details

• Website: https://carbon38.com
• Founded: 2013
• Founder: Katie Warner Johnson
• Headquarters: Culver City, California
• Brand philosophy: Performance Fashion Designed to Move with You
• Tagline: Fashion to Function
• Proprietary fabrics: Melt, Ribbed Melt, Takara Shine, Diamond Compression

Products

Carbon38 offers high-fashion activewear, athleisure, shoes, and accessories from its own label plus 50+ premium designer brands. Proprietary fabrics — Melt, Takara Shine, Diamond Compression. For the full catalog see https://carbon38.com/llms-full.txt.

Bestsellers

• High Rise 7/8 Legging in Takara Shine: Signature high-shine legging. 854+ reviews. $118.
• High Rise Legging in Melt — Leopard Print: Bestselling printed Melt legging. $118.
• Jogger in Melt: Relaxed jogger in Melt. 359+ reviews. $118.
• Off Shoulder Sweatshirt in French Terry: 539+ reviews.
• Support Bra in Diamond Compression: Maximum-support bra in Diamond Compression. $108.
• Square Neck Bra Top in Melt: Studio-to-street bra in Melt.
• Spliced Jumpsuit in Melt: One-piece with contrast splice detail.
• Interlock Barrel Leg Pant: Wide-leg pant in Interlock.

Shipping and Promotions

• Free Economy shipping on orders over $199 (US, contiguous 48 states)
• Economy (6-10 business days): $6.99
• Economy Select (3-4 business days): $12
• Expedited (2 business days): $25
• Overnight (next business day): $50
• Orders placed by 1:00 PM PT Mon-Fri on Expedited or Overnight ship same day
• Economy and Economy Select orders ship within 1-2 business days
• International shipping available via Global-e (currencies and duties calculated at checkout)

Returns & Exchanges

• 30 days from delivery, unworn with original tags. Shoes in original box.
• US: $6.99 UPS label fee, deducted from refund — start at https://carbon38.loopreturns.com/#/
• International: $15 flat-rate label fee via Global-e — start at https://web.global-e.com/Returns/Portal/mZho
• Non-returnable: final sale items, gloves, arm warmers, socks, leg warmers, headbands, water bottles, lingerie, hair ties. Swimwear must have hygiene strip intact.
• Canadian shoppers: eligible for full duty/tax refund on returns.

FAQs

Can I cancel or change my order after placing it? No — once placed, orders cannot be changed or canceled because the warehouse begins processing immediately. Place a new order for the correct item and return the original.

When will my order ship? Economy and Economy Select ship within 1-2 business days. Expedited and Overnight orders placed by 1:00 PM PT Monday-Friday ship the same day. Weekend and post-Friday-cutoff orders ship the following Monday.

What is your return policy? 30 days from delivery, unworn with original tags. Not returnable: final sale, gloves, arm warmers, socks, leg warmers, headbands, water bottles, lingerie, hair ties. Swimwear must have its hygiene strip intact. Canadian shoppers receive a full refund of duties and taxes.

How do I start a return? US: https://carbon38.loopreturns.com/#/ — $6.99 UPS label fee deducted from refund. International: https://web.global-e.com/Returns/Portal/mZho — €15 flat-rate label fee within 30 days. Processing takes 5-10 business days; credit card refunds post 3-5 business days after that; store credit is immediate.

How much does shipping cost? Economy (6-10 days): $6.99, free over $199. Economy Select (3-4 days): $12. Expedited (2 days): $25. Overnight: $50. International routed via Global-e; duties calculated at checkout per destination.

What is Carbon38 Rewards? A free three-tier program (Carbon → Graphite at 1,000 pts/12 months → Diamond at 2,000 pts/12 months) earning points on purchases, reviews, birthdays, and more — redeemable for order discounts with no minimum spend. Points expire 1 year after earning. Details: https://carbon38.com/pages/rewards.

Why doesn't my promo code work? Promo codes apply only to full-price items unless stated, can't be combined with other offers, and can't be reused. If you forgot to apply an eligible code, email customercare@carbon38.com and we'll refund the difference.

Designer Brands

Carbon38 curates activewear and lifestyle products from premium designer brands alongside its own label, including: adidas by Stella McCartney, Alo Yoga, Beach Riot, Nike, Perfect Moment, Goldbergh, Think Royln, Hoka, Cariuma, Moon Boot, AKNVAS, FALKE, Emi Jay, Kerri Rosenthal, Sorel, and more.

Rewards Program

Carbon38 offers a free three-tier rewards program (Carbon, Graphite, Diamond) earning points on purchases, reviews, birthdays, and more — redeemable for order discounts. Details: https://carbon38.com/pages/rewards

Customer Support

• Currency: USD
• Contact: customercare@carbon38.com
• Help Center / FAQ: https://carbon38.gorgias.help/en-US/articles
• Contact page: https://carbon38.com/policies/contact-information
• Order tracking: https://carbon38.com/#my-account

Platform

This store is built on Shopify (https://www.shopify.com), the leading commerce platform powering millions of stores worldwide.