Comfortable, proven everyday basics

Step One offers soft, breathable underwear and apparel made primarily from bamboo viscose that reduces chafing and stays comfortable all day. Whether you choose boxer briefs, trunks, or period underwear, the engineered fits and size-inclusive range make it easier to find a pair that fits your routine and body, so you spend less time adjusting and more time feeling confident.

Try risk-free with the First Pair Guarantee

Step One’s 30-day First Pair Guarantee lets you test your initial pair in real life. If the first pair does not meet your expectations, customer service will help arrange an exchange or replacement, so you can try a different size or style without guesswork. This reduces purchase anxiety and makes your first order effectively a low-risk trial.

Flexible, trusted checkout options

Pay your way at Step One with major cards and modern wallets including Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay, Klarna, Afterpay, Zip, and Shop Pay. Multiple payment and buy-now-pay-later options let you complete checkout quickly on desktop or mobile, helping you convert when you are ready to buy.

Clear delivery, tracking, and support

Orders are processed quickly with typical dispatch within a few business days and tracking updates sent after shipment. Step One provides responsive customer support via email and social channels to help with order changes, sizing questions, or warranty claims, so you always know the status of your purchase.

Fair returns and product confidence

Step One supports returns and exchanges for unopened items and offers a 12-month warranty for manufacturer defects. Combined with size guides and fit tools, this straightforward policy builds trust and makes it simple to exchange for the right fit or address quality issues when needed.