This Adafruit GPS module is the best way to add GPS to your wearable project. It is part of the Adafruit Flora series of wearable electronics, designed specifically for use with the Flora motherboard. This specially designed module is small and simple but incredibly powerful. All models are highly reliable and excellent quality.

Fix status LED
Built-in datalogging
-165 dBm sensitivity, 10 Hz updates, 66 channels
20mA current draw
Designed for wearable use with the Flora system

GPS (Global Positioning System) - Adafruit