Proxima Nova in action on jawbone.com

Under the hood

.header-1 { font-family: ProximaBold, Arial, sans-serif; font-size: 32px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-transform: uppercase; color: #000000; }
.content-1 { font-family: ProximaLight, Arial, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 23px; text-transform: none; color: #000000; }
.content-2 { font-family: ProximaLight, Arial, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 23px; text-transform: none; color: #000000; }