Phi Backpack — balanced by design, made for everyday movement.

**Phi Backpack — balanced by design, made for everyday movement.** Inspired by the timeless harmony of the golden ratio, the Phi Backpack combines clean architectural lines, thoughtful organization, and refined leather craftsmanship in one versatile form. Choose the size that fits your day: Medium for streamlined everyday carry or Large for extra space for work and travel. __Choose your size, pack with purpose, and shop now.__ **MADE FOR WORK, TRAVEL, AND EVERYDAY CARRY** • Crafted from premium water-resistant smooth leather • Country of leather origin: Portugal • Secure Fidlock magnetic closure for intuitive access • Discreet hidden pocket for a tracker device • Padded shoulder straps for comfortable carrying • Rear luggage strap for sliding the backpack over a suitcase handle **SIZE GUIDE** **MEDIUM** • Overall dimensions: Height 32 cm / 12.6 in; Width 29 cm / 11.4 in; Depth 11 cm / 4.3 in • Laptop compartment: Fits a MacBook up to 14 inches • Bottle or travel-mug pocket: Fits items up to 8.5 cm / 3.3 in in diameter • Two slip pockets: 15 x 13.5 cm / 5.9 x 5.3 in each • Best for: Commuting, meetings, short journeys, and everyday essentials **LARGE** • Overall dimensions: Height 40 cm / 15.7 in; Width 29 cm / 11.4 in; Depth 15 cm / 5.9 in • Laptop compartment: Fits a MacBook up to 16 inches • Bottle or travel-mug pocket: Fits items up to 8.5 cm / 3.3 in in diameter • Two slip pockets: 15 x 13.5 cm / 5.9 x 5.3 in each • Additional organization: One interior zippered pocket and one concealed exterior zippered pocket beneath the closing flap • Best for: Work, longer days, and travel with extra essentials **BEFORE YOU ORDER** • Please choose Medium or Large from the size variation selector. • Review the measurements above against the items you plan to carry. • Laptop and tracker devices are not included. • Color, processing time, shipping, returns, and care details are provided in the applicable Pinkoi product fields. __Choose your Phi Backpack size and shop now.__