2.5" diameterSmart Pocket Layout – Compact Capacity: This sling backpack features 6 functional pockets: 2 side mesh holders (fits water bottles ≤2.5" diameter – e.g., slim 12oz bottle), 2 front zippered pockets, plus internal slip pocket and a zippered pocket. What fits: 7.9" iPad Mini, phone, power bank, keys, slim wallet, sunglasses. What does NOT fit: 10" tablet, thick books, wide water bottles, or a 20oz sports bottle. Check our comparison size before orderingAdjustable Strap: This crossbody bag features quick-convert zipper strap adjusts from 17.7" to 35.5", with D-rings for left/right shoulder wear. Note: For best fit, users under 510" (178 cm) are recommended. Taller users may find the bag sits higher or the strap feels shorter; wearing comfort and effect vary from person to person, so please check the dimensions carefully before purchasingWater‑Resistant & Clean-Look Material: Made of water-resistant Oxford fabric with reinforced stitching. The text printed on the shoulder strap adds a distinctive, urban-inspired touch for a sleek personality. The soft grey-white (off-white) hue stays fresh and pairs easily with spring/summer outfits. A padded back panel enhances breathability for all-day wear. Headphone port lets you enjoy music on the go. Ideal for college, commuting, short trips, and outdoor activitiesPerfect for Minimalists – See Size Before You Buy: This is a compact mini bag for daily essentials only (phone, keys, small wallet, iPad Mini, slim water bottle). We encourage you to measure your typical items and compare with our dimension chart. Note: Available in multiple colors and a larger size (13.4") for those needing more space. Makes a great gift for teens, students, or anyone preferring a lightweight, hands‑free bag" />