Frequently Asked Questions

Everything you need to know about KLM Performance apparel and services.

What is the standard shipping time for orders?

Standard shipping typically takes 3-5 business days within the continental United States. International shipping times vary by location, usually ranging from 7-14 business days.

How do I return or exchange an item?

We offer a 30-day return policy. Items must be unworn, unwashed, and in their original packaging with tags attached. Please visit our Returns Portal to start your request.

What materials are used in KLM Performance clothing?

Our apparel is engineered from high-quality, moisture-wicking synthetic blends and premium organic cotton to ensure maximum durability and comfort during high-intensity performance.

Can I track my order once it has shipped?

Yes, once your order is processed, you will receive an email confirmation containing a tracking number and a link to monitor your shipment's progress.

Which payment methods do you accept?

We accept all major credit cards (Visa, Mastercard, American Express, Discover), PayPal, Apple Pay, and Google Pay for a secure and seamless checkout experience.

How do I determine my correct size?

Please refer to our comprehensive Size Guide located on each product page. We provide detailed measurements and fit recommendations to help you find your perfect match.