With all tennis apparel companies getting ready for their big product launches at the French Open in mid-May, April was somewhat of a slow month in terms of women’s tennis fashion, but that doesn’t mean that WTA players didn’t look stylish these past four weeks and the less busy period allowed smaller brands to grab the much-deserved attention to themselves, most notably Tonic by Martina Hingis. Marija Zivlak of Women’s Tennis Blog will show us the clothes that dominated the courts of April’s tournaments.

Laura Siegemund came all the way from qualifying at the Porsche Tennis Grand Prix, dismantled three Top 10 payers without losing a set and made the title match, all the while looking fashionable in a variety of Tonic ensembles.

The 28-year-old Siegemund earned her Top 50 debut in all-white, all-black and colored outfits standing out with their thin tank straps and sheer elements, while practical and trendy plaited hairstyle spiced up the look.

The above Tonic Spring Lucid Tank features built-in bra with removable cups, neck and side contrast detailing, while the highlight are definitely criss-cross spaghetti straps. The top exists in six colors, while my favorite is the white one with pixel contrast, as seen below on Danka Kovinic and Viktorija Golubic.

Montenegro’s Kovinic climbed from No. 60 to No. 47 in the WTA rankings this week, following her final at the TEB BNP Paribas Istanbul Cup, while Switzerland’s Golubic, who has recently recorded as much as two victories for her country in the Fed Cup World Group semifinals, beating Czech Republic’s Karolina Pliskova and Barbora Strycova, showcased her stylish Tonic ensemble at the Katowice Open in early April.

Sorana Cirstea had to cover her beautiful aviator navy New Balance Spring Tournament Dress with several layers of clothing in the cold Prague this week, but earlier in April we saw the dress in full light at the TEB BNP Paribas Istanbul Cup, where the Romanian lost in the second round to eventual champion Cagla Buyukakcay.

The 131st-ranked Cirstea started her brand ambassador role this year at the Miami Open, while her Istanbul appearance marked the first time a New Balance representative wore a dress. Striped, flaired skirt and thin strappy racerback of the dress provide both style and great support for maximum range of motion on the court. Plus, you can beautifully round out the look with the New Balance 996v2 Shoe.

Sloane Stephens’ fashion has never been better than in recent months and this dark Under Armour dress has been her lucky charm, as the American won two WTA titles in it, including her biggest career title at Charleston this month, as well as a power-blue Volvo V60 Polestar car.

Everything about the dress is stylish, especially when Sloane wears it. My favorite features are the subtle print at athletic racerback and back cutout, as well as color-coordinated wristbands and braided headband. Being a big fan of Sloane’s fashion, I am really looking forward to seeing her new kit in action, a white crop top and light pink skirt.