Here in New York, Mother Nature is indulging in some meteorological tomfoolery--vacillating between a tease of spring before throwing shade via a harsh dip in temperature. She's a nasty, mercurial Lady, that one. Regardless of her temperamental disposition, it's no use denying that there is light at the end of the tunnel and summer is quickly approaching. That being said, it's time to assess the situation of whether or not you're physically prepared to unveil your body to the world. Well...are you? If your figure still needs some fine-tuning, now is the time to put in some hard time at the gym. Refinery29 reminded us of this when they posted videos from the loungewear brand Yuasa, previewing their spring collectionn. By loungewear, the brand seems to be refering to slim, trim boxer shorts (and crown hats, which are totally adorable, if not a tad random), as those are the only things available for purchase from their online store. Not that we mind-- this whole post is just glossy pretense to share with you the vids of hot bodied models training in their skivvies (and, again, those crowns). Check out the videos below for some eye candy--and a reminder that you (don't worry, we need it too) should start doing some push-ups and sit-ups, ASAP.