Venus Williams poses for new K-Swiss/Eleven Limited Edition collection.

Even at 40, Venus Williams still serves up aces on the court all while managing two businesses. The seven-time Grand Slam champion is continuing to stretch the limits with her apparel company Eleven

She just collaborated with California tennis brand K-Swiss to create a limited edition shoe and apparel collection. It marks the first ever "Club K-Swiss" collaboration. 

The collection is anything but traditional and is for all women who are taking on each day in pursuit of their best self. 

"I'm just a kid from Compton who knew how to hit a tennis ball."

This quote runs on the sleeve of the Eleven/K-Swiss letterman-styled jacket. The collection is dark navy blues, soft grays, plaid, and a touch of mint.

"Taking what both companies stand for, Eleven excellence and K-Swiss' classic lifestyle and California right where I'm from, and combining it into one happy marriage of clothing, fun and performance," Venus said in the promotional video. 

The limited edition collection is already selling fast. The gray and plaid "Prep Rally Hoodie" has already sold out, as well as the matching gray joggers. 

The clothing items are both comfortable and festive, just in time for the holiday season. 

As of now, there are still a handful of items left for grabs like leggings, shirts, sports bras and the Pride Varsity Sweater. The Classic K-Swiss 66 x Eleven tennis shoe is also available for pre-order and is priced at $120. 

Venus is not competing this week at the WTA's last scheduled event of the season in Linz, which means fans won't be seeing her on court until 2021.