Replica jerseys are a full-button jersey that feature the same design as authentic jerseys, but are made of less durable fabric. Unlike authentic jerseys, replicas do not have the MLB logo on the back and rather than being sewn on, letters and patches are of tackle twill that is ironed or silk-screened to the jersey.

Nike authentic jerseys - also known as on-field MLB jerseys - are exactly like the ones your favorite players wear on game day.

Traditionalists do, finding it sacrilege, but the reason the swoosh is now located on the front of the Yankees' uniform is because of MLB wanting to appeal to younger consumers and, not for nothing, a 10-year deal that was valued at, according to sources, more than $1 billion among MLB, Nike and Fanatics.

The Yankees have never worn players names on their uniforms, ever. Even their road uniforms. The reason : Tradition! The Yankees, Giants and Red Sox have continued the old practice of not having names on the home jerseys.

Replica jerseys make use of conventional, affordable fabric technology designed to keep you cool and comfortable. This material is typical fabric weight. Authentic jerseys make use of high-performance, sweat-wicking fabric.

Replica jerseys are the least expensive, generally running $69.99. Replica jerseys are made out of a lower-quality fabric so they aren't as nice as other jerseys. They also have a slightly different cut, so the arm and neck holes are larger, and they don't have the names and number sewn onto them.

Nike authentic jerseys - also known as on-field MLB jerseys - are exactly like the ones your favorite players wear on game day. These jerseys are made using 100% polyester material with twill graphics and a full-button front.

Authentic jerseys have a Nike logo on the right shoulder. The name and numbers on the back of the jersey will be a thin fabric stitched to the jersey, not a heat-pressed vinyl. You should be able to see the stitching of the name and numbers on the inside of the jersey.

Nike co-founder Phil Knight was adamant that his company's new logo be a simple design that is fluid and conveys motion and speed. The logo is also said to symbolize the wing of the Greek goddess of victory, Nike.

The Nike logo, also known as the Swoosh, depicts motion, speed, and success (in the form of a positive checkmark). It was inspired by the wings of the Greek goddess of victory, Nike.

polyester MLB jerseys worn on the field have been made out of double-knit polyester since the early 1970s.

The home uniform is white with distinctive pinstripes and a navy interlocking "NY" at the chest. The away uniform is gray with "NEW YORK" written across the chest in navy blue outlined in white and navy-white-navy stripes on the sleeve cuff.

White – Upper Body: 91% polyester/9% spandex; Lower body: 88% polyester/12% spandex. Mesh – 100% polyester.

Jersey fabric is classed as a synthetic fabric if made from a filament like polyester, natural if made from a natural yarn like cotton, or man-made if made from an artificial yarn like viscose. Its weight, elasticity and texture will depend on the knitting process.

Jersey manufacturers (Nike, adidas, etc.) and clubs produce Replica jerseys as supporter-ready “replicates” of the more technical, on-field jerseys you see on matchdays. Replica soccer jerseys are official, licensed apparel, produced and approved by the manufacturer and corresponding club.

Authentic jerseys are designed with the best possible technology and fabrics for the highest level of play. They are an exact match to the jerseys you see players wearing on the field. Replica jerseys are made for a fan in the stands - with excellent materials for highest levels of comfort and wear.