consolidated results of operations year ended december 31 , 2018 compared to year ended december 31 , 2017 net revenues increased $ 203.9 million , or 4.1% ( 4.1 % ) , to $ 5193.2 million in 2018 from $ 4989.2 million in 2017 .net revenues by product category are summarized below: .
[['( in thousands )', 'year ended december 31 , 2018', 'year ended december 31 , 2017', 'year ended december 31 , $ change', 'year ended december 31 , % (  % ) change'], ['apparel', '$ 3462372', '$ 3287121', '$ 175251', '5.3% ( 5.3 % )'], ['footwear', '1063175', '1037840', '25335', '2.4'], ['accessories', '422496', '445838', '-23342 ( 23342 )', '-5.2 ( 5.2 )'], ['total net sales', '4948043', '4770799', '177244', '3.7'], ['license', '124785', '116575', '8210', '7.0'], ['connected fitness', '120357', '101870', '18487', '18.1'], ['total net revenues', '$ 5193185', '$ 4989244', '$ 203941', '4.1% ( 4.1 % )']]
the increase in net sales was driven primarily by : 2022 apparel unit sales growth driven by the train category ; and 2022 footwear unit sales growth , led by the run category .the increase was partially offset by unit sales decline in accessories .license revenues increased $ 8.2 million , or 7.0% ( 7.0 % ) , to $ 124.8 million in 2018 from $ 116.6 million in 2017 .connected fitness revenue increased $ 18.5 million , or 18.1% ( 18.1 % ) , to $ 120.4 million in 2018 from $ 101.9 million in 2017 primarily driven by increased subscribers on our fitness applications .gross profit increased $ 89.1 million to $ 2340.5 million in 2018 from $ 2251.4 million in 2017 .gross profit as a percentage of net revenues , or gross margin , was unchanged at 45.1% ( 45.1 % ) in 2018 compared to 2017 .gross profit percentage was favorably impacted by lower promotional activity , improvements in product cost , lower air freight , higher proportion of international and connected fitness revenue and changes in foreign currency ; these favorable impacts were offset by channel mix including higher sales to our off-price channel and restructuring related charges .with the exception of improvements in product input costs and air freight improvements , we do not expect these trends to have a material impact on the full year 2019 .selling , general and administrative expenses increased $ 82.8 million to $ 2182.3 million in 2018 from $ 2099.5 million in 2017 .as a percentage of net revenues , selling , general and administrative expenses decreased slightly to 42.0% ( 42.0 % ) in 2018 from 42.1% ( 42.1 % ) in 2017 .selling , general and administrative expense was impacted by the following : 2022 marketing costs decreased $ 21.3 million to $ 543.8 million in 2018 from $ 565.1 million in 2017 .this decrease was primarily due to restructuring efforts , resulting in lower compensation and contractual sports marketing .this decrease was partially offset by higher costs in connection with brand marketing campaigns and increased marketing investments with the growth of our international business .as a percentage of net revenues , marketing costs decreased to 10.5% ( 10.5 % ) in 2018 from 11.3% ( 11.3 % ) in 2017 .2022 other costs increased $ 104.1 million to $ 1638.5 million in 2018 from $ 1534.4 million in 2017 .this increase was primarily due to higher incentive compensation expense and higher costs incurred for the continued expansion of our direct to consumer distribution channel and international business .as a percentage of net revenues , other costs increased to 31.6% ( 31.6 % ) in 2018 from 30.8% ( 30.8 % ) in 2017 .restructuring and impairment charges increased $ 59.1 million to $ 183.1 million from $ 124.0 million in 2017 .refer to the restructuring plans section above for a summary of charges .income ( loss ) from operations decreased $ 52.8 million , or 189.9% ( 189.9 % ) , to a loss of $ 25.0 million in 2018 from income of $ 27.8 million in 2017 .as a percentage of net revenues , income from operations decreased to a loss of 0.4% ( 0.4 % ) in 2018 from income of 0.5% ( 0.5 % ) in 2017 .income from operations for the year ended december 31 , 2018 was negatively impacted by $ 203.9 million of restructuring , impairment and related charges in connection with the 2018 restructuring plan .income from operations for the year ended december 31 , 2017 was negatively impacted by $ 129.1 million of restructuring , impairment and related charges in connection with the 2017 restructuring plan .interest expense , net decreased $ 0.9 million to $ 33.6 million in 2018 from $ 34.5 million in 2017. .

Question: what is the gross margin in 2018?
Answer: 45.1%