The underarm bag is one of the easiest shapes to love: a compact, horizontal bag that sits against your side, just below the shoulder. It is hands-free like a crossbody, but it looks more polished, and it works with almost everything in your wardrobe.
If you have never carried one, here is how it works and how to choose.
What is an underarm bag?
It is a small-to-medium bag with a short strap, designed to be tucked under the arm or worn on the shoulder. Most are longer than they are tall (around 28–32 cm wide), which makes them easy to slip against your body. Many also come with an adjustable strap, so you can switch to a shoulder or crossbody carry.
How to wear it
- Tucked under the arm. The classic carry. Keep the strap short and the bag close to your body.
- On the shoulder. Lengthen the strap slightly for a relaxed look.
- Crossbody. If the strap is adjustable, wear it across the body for a busy day or when traveling.
A simple rule: pair a structured underarm bag with relaxed clothes (jeans, a knit, a simple dress), and a soft, slouchy one with sharper tailoring.
Five styles to try from our new collection
1. The polished one: Floral Charm Flap Underarm Bag (No 10021), $39.9
A flap with a magnetic snap, an inner zipper pocket and a floral charm. Size: 28 × 7 × 15.5 cm, 0.65 kg. Colors: Apricot, Pink, Black. This is our Bestselling pick and the easiest way to dress up a plain outfit.
2. The vintage one: Soft Fabric Texture Underarm Bag (No 10028), $39.9
Roomy at 32.5 × 12 × 15 cm and light at 0.5 kg, with a zipper top and an adjustable strap. It can be worn on the shoulder or across the body. Colors: Purple, Brown.
3. The classic one: Grain Texture Underarm Bag with Metal Buckle (No 10027), $29.9
A grainy texture that hides everyday scuffs, with a metal buckle detail. Size: 32 × 9 × 16 cm, 0.45 kg. Colors: Beige, Black.
4. The playful one: Dotted Texture Zipper Underarm Bag (No 10022), $29.9
A dotted texture with metal decor and an adjustable strap. Size: 32 × 10 × 14 cm, 0.55 kg. Colors: Purple, Pink.
5. The small one: Matte Leather Woven Pillow Bag (No 2046), $25.9
If you prefer something smaller, this pillow-shaped shoulder bag measures 18 × 7 × 9.5 cm and weighs only 0.21 kg. Colors: Chocolate, Grey, PineTea, Khaki, Brown.
How to choose
| If you want… | Try |
|---|---|
| A bag that dresses up simple outfits | No 10021 (flap, magnetic snap) |
| Room for daily essentials | No 10028 (32.5 cm wide) |
| A texture that hides scuffs | No 10027 (grain) |
| A pop of color | No 10022 (Pink/Purple) |
| The lightest, smallest option | No 2046 (0.21 kg) |
Check the size on the product page against your phone and wallet. Most of these bags are wide but slim, so they fit a phone, a card holder and keys comfortably, while bulky items may not.
Care tips
All of these are PU leather. Wipe with a soft damp cloth, keep them away from heat, and store them stuffed with a little paper so they hold their shape. Avoid long contact with dark denim, which can transfer color to lighter bags.
Browse the full 2026 New Arrivals or our Bestselling picks.