Weve seen a wide array of Major League Baseball jerseys this season. Home jerseys, road jerseys, alternate jerseys, throwback jerseys, camouflage jerseys and special designs for Mothers Day, Fathers Day, Memorial Day, Independence Day and more.But theres one type of jersey we havent see very much of -- the vest. Thats because there are only two vest jerseys currently in use by MLB teams: the Colorado Rockies black alternate vest, which tends to be worn about once a week, and the Arizona Diamondbacks cream throwback vest, which is worn for Thursday home games.Vest jerseys have always been popular here at Uni Watch HQ -- theres something nice about the colored undershirt sleeves matching the colored socks, at least for players who cuff their pants up high -- so its a little sad that there are so few of them currently in rotation. Granted, you wouldnt want to see every MLB team go vest-clad (the St. Louis Cardinals, for example, have never worn a vest and probably never should -- they just dont feel very vest-y), but its a look that works for certain clubs, and theres definitely room for more of it on the diamond.Which team came up with the idea of a vest-based uniform, anyway? That would be the Chicago Cubs, who wore a sleeveless alternate jersey in 1940. The idea was that the vests would be less constricting and allow greater freedom of movement.The following year, the Cubbies took things a step further -- several steps, in fact -- by eliminating their sleeved jerseys and going fully vested. They also added a blue road vest (MLBs first powder blue uni, dontcha know) and a white shoulder yoke to their blue undershirt, which created an interesting visual effect. The 1941 style has been preserved for posterity in this spring training video clip, one of the best documents of the early vest format:The Cubbies sleeveless experiment was short-lived, as they went back to wearing conventional jerseys in 1943. It would be more than a dozen years before another team took a vested interest: the 1956 Cincinnati Reds (or Redlegs, as they were then called due to the McCarthyite scare). Cincy stuck with the sleeveless format, in assorted designs, for 11 seasons before reverting back to sleeves.The Reds roster happened to include the ideal spokesman for the vested look: first baseman Ted Kluszewski. Big Klu liked to show off his sizable biceps by ripping the sleeves off his red undershirts, making him MLBs first truly sleeveless ballplayer.The Reds faced a bit of a vest-based problem in 1961, when team owner Powel Crosley died. MLB protocol at the time called for the addition of a black memorial armband (the advent of memorial patches was still more than a decade away), but how do you add an armband to your jersey sleeve if your jersey doesnt have sleeves? The Reds solved that problem by adding a black border to their left armhole -- the first vest memorial. (After one season, they decided they liked it so much that they added it to the other side -- not as a memorial, but just as a design element.)Unlike the Cubs, who stood alone as MLBs only vest-clad team, the Reds soon had company, as the 1957 Pirates, 1962 As, 1963 Indians, and 1968 Orioles all climbed aboard the vest bandwagon. This period can be seen as the Golden Age of Vests, and even included MLBs first sleeveless World Series champions, the 1960 Pirates. The Golden Age didnt last, as all MLB teams had gone back to wearing sleeves by 1972. But there was a sleeveless renaissance -- a Silver Age, if you will -- in the late 1990s and early 2000s, fueled in part of the alternate-jersey craze, which allowed teams to include a vest in their uniform rotation without fully committing to the sleeve-free look. At least 14 teams -- the Angels, Blue Jays, Devil Rays, Diamondbacks, Indians, Mariners, Marlins, Pirates, Rangers, Rockies, Royals, Reds, Twins, White Sox -- wore vests during this period. The Silver Age also brought two more vest-clad World Series champs: the 1997 Marlins and the 2001 Diamondbacks. But the Silver Age soon ebbed as well, and now were down to the Rockies and D-backs as the only remaining vested teams. Why have vests fallen out of favor? Some of it has to do with the natural ebb and flow of on-field fashion, but theres another factor to consider: merchandising. Fans are less inclined to buy vest jerseys, so teams are now less inclined to wear them. That wasnt an issue back in the Golden Age, because jersey retailing didnt yet exist.One possible solution to the problem: the faux vest, which is basically a standard jersey with contrast-colored sleeves to simulate the vest format. This style was pioneered by the Angels in 1997 and was also worn by the Blue Jays. And heres something you might not know: The Dodgers were planning to go with the faux vest style for their road jerseys in 1999. Prototypes were made, promotional merchandise was manufactured, and the design even appeared in video games and in the 1999 MLB Style Guide. But the Dodgers got cold feet and scrapped the idea before the start of the season, so this jersey never made it onto the field. The faux vest isnt as satisfying as a real vest, of course, but the contrasting sleeves produce a similar visual effect and would probably be enough to overcome the usual consumer resistance to vests. Could that be enough to lead to a Bronze Age? Stay tuned.Would you like to nominate a uniform or uni element to be showcased in a future Friday Flashback installment? Send your suggestions here.Paul Lukas had this Simpsons song stuck in his head while working on this piece. If you liked this column, youll probably like his Uni Watch Blog, plus you can follow him on Twitter and Facebook. Want to learn about his Uni Watch Membership Program, be added to his mailing list so youll always know when a new column has been posted or just ask him a question? Contact him here. Gabriel Jesus Manchester City Jersey . Aduriz headed home Markel Susaetas cross in the sixth minute to open the scoring at San Mames Stadium. He bettered that with a long-range blast that went in off the goal frame in the 18th, and converted a penalty in the 72nd after Diego Mainz was sent off for fouling Aduriz with only the goalkeeper to beat. Gabriel Jesus Jersey . 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The San Jose Sharks are glad to be back home for an extended period. Perhaps it will get their struggling offense going.San Jose opens a five-game homestand and a stretch of seven of eight at SAP Center on Monday night against the New Jersey Devils, who are dealing with their own problems trying to generate offense.The Sharks are coming off a 3-3-0 road trip -- their longest of the season. Things started well with 10 goals scored in wins over the Washington Capitals, Florida Panthers and Tampa Bay Lightning. They followed by tallying only four goals in losses to the Carolina Hurricanes, St. Louis Blues and Arizona Coyotes.Joe Pavelski, who had two goals and two assists on the trip, said playing at home for the first time since Nov. 5 and for a long period will be good for the team.(Well) spend a little bit of time (at home) and try to create that home-ice advantage, he told the CSN Bay Area website. We havent had much time there. Theres a little bit of disconnect from the fans just because weve been gone.We want to get back there, we want to get the crowd going where we score a goal and the place erupts on your side. Those are good feelings.That was certainly the case early in the season when San Jose won four in a row, but open this homestand trying to avoid a third consecutive loss in northern California.San Jose (9-8-1) is near the top of the Pacific Division despite having one of the more lackluster offensive units in the league. San Jose has scored just 41 goals so far, one more than New Jersey.Pavelski is tied with Brent Burns for the team lead with six goals, but Burns has failed to score in four straight. Joe Thornton has only two goals and none in his last five games, and Patrick Marleau has scored four goals with one coming in his past eight games. Thornton and Marleau have combined for 16 goals, including five game-winners, and 18 assists versus the Devils.I think all the guys in here have high expectations as far as how we want to play. I think guys put a lot of pressure on themselves, Sharks defenseman Paul Martin told CSN Bay Area.ddddddddddddAnother player whos struggled is Tomas Hertl, who set career highs with 21 goals and 25 assists last season, but has only four goals and five assists through 17 games. Hertl suffered an injury against the Blues, and may need knee surgery.The Devils are 1-2-0 on their four-game road trip and will be trying to leave California with a win. After defeating the Dallas Stars in overtime on Tuesday, New Jersey dropped a one-goal decision to the Anaheim Ducks on Thursday before falling 4-2 to the Los Angeles Kings on Saturday.New Jersey (9-5-3) has failed to score more than 197 goals in each of the last four seasons and is on pace for about 172 this season. The addition of Taylor Hall from the Edmonton Oilers was meant to address the lack of goal scoring, but a knee injury is expected to sideline him until mid-December. Michael Cammalleri (three goals) remains day-to-day for personal reasons.With Hall and Cammalleri out, that leaves journeyman P.A. Parenteau as the teams leading goal scorer with five. Defenseman Damon Severson also leads the Devils with nine assists and 12 points.We need more performances from the players who are here, Devils coach John Hynes said after the loss to the Kings.One player Hynes could be targeting with that statement is Kyle Palmieri. Playing in his first season with the Devils in 2015-16, Palmieri had career bests with 30 goals and 27 assists in 82 games. Hes slumped to three goals and four assists in 17 games, and played just 15 shifts against Los Angeles -- his fewest this season.New Jersey also has failed to score a power-play goal in its last eight games, going 0-for-26 in that stretch.On the bright side, New Jersey has won two straight at SAP Center by a combined 8-2 score. That includes a 30-save shutout by Keith Kinkaid in the Devils 3-0 win on March 10.Kinkaid, who has not played since Nov. 11, is 2-0-1 with a 1.65 goals-against average as Cory Schneiders backup. ' ' '