New Era Seattle Seahawks On-Field Sideline Bobble Knit. Featuring a traditional bobble top and fleece-lined for greater warmth, the knit is finished in franchise colours. A 'SEA’ wordmark is applied to the front of the crown, while a 'Seahawks’ wordmark is present at the rear. The team logo is embroidered to the front of the upturned cuff, the NFL shield to the rear and our New Era flag to the left.