A sweatshirt and grey sweatpants are a good pairing worth integrating into your current casual fashion mix. As for shoes, introduce white slip-on sneakers to your outfit.
White Slip-on Sneakers with Sweatshirt Outfits For Women
Flex your sartorial savvy in this relaxed combo of a sweatshirt and light blue skinny jeans. If you wish to easily dial down your look with one item, add white slip-on sneakers to the mix.