How do I know which size to pick for the new Calvin Klein, Tommy Hilfiger, and Diesel pieces in the Spring collection?

We know fit is everything! Each brand in our Just Landed collection, including Calvin Klein, Tommy Hilfiger, and Diesel, has its own unique fit. On every product page, you'll find a detailed size guide so you can compare measurements and find your best fit. If you're between sizes or love an oversized look for lightweight layers and tees, we recommend sizing up. Still unsure? Reach out to our team— we're always happy to help you nail the perfect fit.

What is ThirdBaseUrban’s return policy for these new arrivals if something doesn’t work out?

Shopping our new arrivals is risk-free! If your purchase—whether it’s a pair of signature denim, a logo tee, or an accessory—doesn’t fit or isn’t quite right, you can return it within 30 days of delivery. Just make sure items are unworn, with tags attached, and in their original packaging. Simply follow our hassle-free returns process online, and we’ll take care of the rest.

Are all the Calvin Klein, Tommy Hilfiger, and Diesel products in this collection authentic?

Absolutely! At ThirdBaseUrban, we only carry 100% authentic pieces from brands like Calvin Klein, Tommy Hilfiger, and Diesel. All items in our Just Landed Spring collection are sourced directly from official brand partners, so you can shop with total confidence in the quality and authenticity of every product.

New Arrivals from Calvin Klein | Thirdbase Urban

Just Landed

Step into the new season with bold energy and effortless style. Inspired by nautical flags and signature logo details, this range blends premium comfort with modern streetwear aesthetics. Discover lightweight layers, graphic tees, signature denim, and statement accessories — all curated to bring movement, confidence, and standout appeal to your Spring wardrobe. Explore the Spring drop from Calvin Klein , Tommy Hilfiger, Diesel, and more — only at Thirdbase Urban.