A POLO shirt with a non-pleated collar is disclosed. The shirt includes a garment body, including a front garment piece and a back garment piece, wherein front garment piece is on front side of the garment body and back garment piece is on back side of the garment body; sleeves, provided at both sides of upper part of the garment body and connected with the front and back garment piece; a collar, provided at top of the garment body and connected with the front and back garment piece, including a collar face and an elastic support strip, wherein the collar face includes a collar face body, first and second outer edges; the first outer edge is a two-layer structure, and the elastic support strip is located between two-layer structure. The first outer edge of collar is supported by elastic support strip.

A POLO shirt with a non-pleated collar is disclosed. The shirt includes a garment body, including a front garment piece and a back garment piece, wherein front garment piece is on front side of the garment body and back garment piece is on back side of the garment body; sleeves, provided at both sides of upper part of the garment body and connected with the front and back garment piece; a collar, provided at top of the garment body and connected with the front and back garment piece, including a collar face and an elastic support strip, wherein the collar face includes a collar face body, first and second outer edges; the first outer edge is a two-layer structure, and the elastic support strip is located between two-layer structure. The first outer edge of collar is supported by elastic support strip.

A sound amplifying bowl assembly includes a grommet has an inner lip that is spaced from an outer lip to define an engaging slot between the inner lip and the outer lip. The inner lip is extendable through an ear hole in a helmet thereby facilitating a bounding edge of the ear hole to engage the engaging slot. In this way the grommet is retained in the ear hole. The grommet has a sound hole extending therethrough to pass audible sound into the helmet. A bowl is integrated into the grommet and the bowl is concavely arcuate such that a curvature of the bowl has a focus that is aligned with the sound hole in the grommet. In this way the bowl can direct the audible sound into the ear hole. Thus, the bowl enhances a user's ability to hear the audible sound when the user is wearing the helmet.

A POLO shirt with a non-pleated collar is disclosed. The shirt includes a garment body, including a front garment piece and a back garment piece, wherein front garment piece is on front side of the garment body and back garment piece is on back side of the garment body; sleeves, provided at both sides of upper part of the garment body and connected with the front and back garment piece; a collar, provided at top of the garment body and connected with the front and back garment piece, including a collar face and an elastic support strip, wherein the collar face includes a collar face body, first and second outer edges; the first outer edge is a two-layer structure, and the elastic support strip is located between two-layer structure. The first outer edge of collar is supported by elastic support strip.

A POLO shirt with a non-pleated collar is disclosed. The shirt includes a garment body, including a front garment piece and a back garment piece, wherein front garment piece is on front side of the garment body and back garment piece is on back side of the garment body; sleeves, provided at both sides of upper part of the garment body and connected with the front and back garment piece; a collar, provided at top of the garment body and connected with the front and back garment piece, including a collar face and an elastic support strip, wherein the collar face includes a collar face body, first and second outer edges; the first outer edge is a two-layer structure, and the elastic support strip is located between two-layer structure. The first outer edge of collar is supported by elastic support strip.

A sound amplifying bowl assembly includes a grommet has an inner lip that is spaced from an outer lip to define an engaging slot between the inner lip and the outer lip. The inner lip is extendable through an ear hole in a helmet thereby facilitating a bounding edge of the ear hole to engage the engaging slot. In this way the grommet is retained in the ear hole. The grommet has a sound hole extending therethrough to pass audible sound into the helmet. A bowl is integrated into the grommet and the bowl is concavely arcuate such that a curvature of the bowl has a focus that is aligned with the sound hole in the grommet. In this way the bowl can direct the audible sound into the ear hole. Thus, the bowl enhances a user's ability to hear the audible sound when the user is wearing the helmet.