Birthday for a boy who likes sports!
Give him a practical gift, such as a wallet with a more personalized engraving. Engrave your name or your nickname on it. When he uses the wallet every time, he will see it and feel warm. Or a large shoulder bag is also very good.
Give him a creative gift, such as a personalized military tag with engraving. You can write special words and dates on it, or you can engrave "This person has an owner and signature", etc. Boys who like sports wear this kind of tag, which is very personalized and looks very good.
You can give him a sun jar, which can store sunlight and emit warm sunlight at night, adding a touch of warmth in this coming winter, and if you do something small, your boyfriend will definitely be very touched.