You get this piece for free when you purchase the jacket.

• Fabric composition in the EU: 96% polyester, 4% spandex
• Fabric composition in the US: 93% polyester, 7% spandex
• Fabric weight in the EU: 6.34 oz./yd.² (215 g/m²)
• Fabric weight in the US: 7.08 oz./yd.² (240 g/m²)
• Premium knit mid-weight jersey
• Smooth, comfortable 2-way stretch fabric that stretches and recovers on the cross and lengthwise grains
• Regular fit
• Fabric is OEKO-TEX 100 standard certified