As the newly grown mustaches several Giants outfielders are sporting indicate, the first-place club isn’t lacking for team chemistry.

Outfielders Mike Yastrzemski, Steven Duggar and Austin Slater appear to be recruiting more teammates to join them in “Mustache May,” and later this week, players and coaches will have new incentive to grow facial hair.

On Thursday, the Giants will reach MLB’s 85% vaccination threshold, which means many of the coronavirus protocols that have been in place since players returned to the field last July will be relaxed.

In other words, expect more air time for those mustaches.

“We’re able to take our masks down in the dugout, in the clubhouse, in other shared spaces, but always being cognizant of individuals that are not vaccinated,” manager Gabe Kapler said. “I think we can have meetings at the hotel in rooms with fully vaccinated individuals. Those are fairly exciting off the top of my head.”

The Giants will still be required to wear their masks until they arrive in Pittsburgh for the start of a four-game set on Thursday, so players such as Mauricio Dubón who need a little extra time for hair above their upper lip to grow in may take advantage.

Price & Product Availability Tracker

Discover where products are available & compare prices

“I don’t want to blow up his spot,” Slater said of Dubón’s efforts over the weekend. “But I think he’s trying.”

When the masks come off on Thursday, it’s possible a few members of the Giants’ traveling party will have a different look.

“I could use (a mustache) as an excuse to hide some of my grays,” Kapler said with a smile. “I feel like there’s less grays in my mustache. So I would do anything that the players asked for in that regard. If that was something they wanted, they can come grab me.”

The Giants have prided themselves on taking coronavirus protocols seriously since the beginning of the pandemic and have not had a player contract COVID-19 during the 2020 or 2021 regular seasons. Outfielder Alex Dickerson tested positive for the coronavirus last September and a game at Petco Park against the Padres was postponed, but he produced several negative tests within the next 24 hours and was permitted to return to the lineup.

A handful of Giants players including Brandon Belt and Tyler Beede have said they tested positive for COVID-19 during the offseason and dealt with symptoms, but since the beginning of spring training, the Giants haven’t had any practices or games interrupted due to a confirmed coronavirus case.

A Giants’ medical and training staff that includes L.J. Petra, who was officially designated as the team’s Infection Control Prevention Coordinator, has used the term “pitching a shutout” in their efforts to avoid having a member of the traveling party test positive for COVID-19 has been incredibly effective and has drawn strong reviews from team personnel.

Ahead of the 2020 trade deadline, Giants pitcher Kevin Gausman cited the medical staff’s attention to detail with regard to coronavirus protocols as one of the reasons he wanted to remain with the club.

Kapler said Monday he didn’t know the exact percentage of the Giants’ Tier 1 personnel –which includes essential on-field personnel– will be vaccinated, but added the Giants will be “nearly fully vaccinated as a group.”

Beginning Thursday, vaccinated personnel will no longer be required to wear tracking devices, they’ll be tested less frequently and they will not need to quarantine if they have come into contact with a person who tests positive for COVID-19.

One of the most encouraging developments for a Giants team that’s already off to a strong start is that players will be able to spend more time with one another away from the field and in the clubhouse, where ideas will be able to flow freely.

“I think it’s super great,” reliever Jarlín García said of clearing the threshold. “It’s a very positive sign where we’re going to be able to hang around together and be able to interchange ideas.”