The cup of the speciality coffee crowd. 6oz is the right ratio for cortado, piccolo and macchiato, in glass or plastic. Small format, strong ritual.

4.3
KeepCup Thermal Quicksip XS 6oz in Nitro, a brushed stainless steel reusable coffee cup with dark metallic finish and clear press-fit lid, shown against a white background.

Insulated QuickSip Espresso Cup
Nitro

£20.00
4.3
KeepCup Thermal Quicksip XS 6oz in Black, shown from a front angle against a white background, featuring a matte black stainless steel body with embossed KeepCup logo and clear plastic sipper lid.

Insulated QuickSip Espresso Cup
Black

£20.00
4.3
KeepCup Thermal Quicksip XS 6oz in Rose, shown against a plain white background. The reusable cup features a coral pink stainless steel body with embossed KeepCup logo, silver rim and clear plastic lid with sipper opening.

Insulated QuickSip Espresso Cup
Rose

£20.00
4.3
KeepCup Thermal Quicksip XS 6oz in White, shown from a front angle against a plain background, featuring a white stainless steel body with embossed logo, silver trim, and clear plastic lid with drinking opening.

Insulated QuickSip Espresso Cup
White

£20.00
4.3
KeepCup Thermal Quicksip XS 6oz in Frost Green, shown against a white background. The reusable cup features a matte green stainless steel body with embossed KeepCup logo, silver rim, and clear plastic sipper lid.

Insulated QuickSip Espresso Cup
Frost Green

£20.00
4.7
KeepCup Brew Cork XS 6oz in Black, shown against a white background. The reusable cup features a clear glass body with a natural cork band and black lid with sipper plug.

Brew Cork Espresso Cup
Black

£20.00
4.7
KeepCup Brew Cork XS 6oz in Storm, featuring a clear glass cup with natural cork band and black lid with navy plug, shown against a plain white background.

Brew Cork Espresso Cup
Storm

£20.00
4.7
KeepCup Brew Cork XS 6oz in Filter colour, featuring a clear glass cup with natural cork band and latte lid with sip-through opening, shown against a plain white background.

Brew Cork Espresso Cup
Filter

£20.00
4.7
KeepCup Brew Cork XS 6oz in Saskatoon, featuring a clear tempered glass cup with natural cork band and peony lid with sipper closure, shown against a white background.

Brew Cork Espresso Cup
Saskatoon

£20.00
4.7
KeepCup Brew Cork XS 6oz in Alder, featuring a clear glass cup with natural cork band and blackberry coloured lid with sipper, shown against a plain white background.

Brew Cork Espresso Cup
Alder

£20.00
4.8
KeepCup reusable glass XS cup with light brown lid and white band on white background

Brew Glass Espresso Cup
Pebble

£18.00
4.8
KeepCup Brew XS 6oz in Primrose, featuring a clear glass cup with a guavaband and latte lid with pink plug, shown against a plain white background.

Brew Glass Espresso Cup
Primrose

£18.00
4.8
KeepCup Brew XS 6oz in Filter colour, featuring a clear tempered glass cup with a soft charocalband embossed with the KeepCup logo, and a latte lid with sipper opening, shown against a white background.

Brew Glass Espresso Cup
Filter

£18.00
4.8
KeepCup Brew XS 6oz in Black, shown from a front angle against a white background, featuring a clear tempered glass cup with a blackband and black lid with sipper.

Brew Glass Espresso Cup
Black

£18.00
4.8
A KeepCup Brew XS reusable glass coffee cup with a dark purple silicone sleeve and a matching dark purple lid featuring a bright red plug shown on a plain white background

Brew Glass Espresso Cup
Damson

£18.00
4.8
KeepCup Brew XS 6oz in Alder, featuring a clear tempered glass cup with a merlotband and blackberry lid with sipper, shown against a white background.

Brew Glass Espresso Cup
Alder

£18.00
4.8
KeepCup Brew XS 6oz in Oxford Blue, featuring a clear glass cup with a oxford blue band and black lid with storm plug, shown against a plain white background.

Brew Glass Espresso Cup
Oxford Blue

£18.00
4.8
A KeepCup Brew reusable glass coffee cup in the Design Your Own colour combination, featuring a clear tempered glass body, whiteband with embossed KeepCup logo, and a soft charcoal lid with sip-through opening, photographed against a plain white background.

Design Your Own Brew
XS 6oz

£18.00
4.7
KeepCup Brew Cork XS 6oz reusable coffee cup in a studio product shot against a white background, featuring a clear glass cup with natural cork band and white lid with sipper closure.

Design Your Own Brew Cork
XS 6oz

£20.00
4.7
A white KeepCup Original XXS 4oz reusable coffee cup photographed against a plain white background, featuring a matching white lid with sipper spout and a white silicone band embossed with the KeepCup logo.

Design Your Own Original
XXS 4oz

£12.00
What is a 6oz reusable coffee cup best for?

A 6oz KeepCup (our XS size) is best for espresso, piccolos, macchiatos and short blacks — anyone who wants a small, strong serve rather than a big milky one.

  • Materials: Tempered glass or insulated stainless steel.
  • Lids: Glass comes with a press-on sipper lid; insulated steel comes with a press-in clear quicksip lid.
  • Carry: Fits most car and stroller cup holders, and slips easily into a backpack or shoulder bag.

Available in a range of colour combinations, or build your own with Design Your Own — choose material, size, band, lid and plug colours.

What makes the 6oz coffee cup ideal for espresso?

The 6oz coffee cup is no less ideal for espresso lovers. The cup allows a little more space for your coffee (or a sneaky drop of milk!) and makes it easy to safely take your hot drink on the go.  Great for cortado, macchiato and magic drinks the 6oz is 177ml to the fill line.

Are KeepCups suitable for kids?

The 4oz and 6oz sizes are popular for kids, particularly for babyccinos.  The simple design is easy to drink from, clean and, in plastic, unbreakable. All Keep Cup products are non-toxic, BPA and BPS free.  The 4oz and 8oz Originals are made in the UK.

Can I use the 6oz coffee cup in the microwave?

You can heat your 6oz tempered glass in the microwave to 100°C. Please remove the splashproof lid first, however, as these are not microwave-safe.

Do not place your 6oz stainless steel insulated cup in a microwave - these are not microwave-safe.

The Brew tempered glass 6oz reusable cup has a press-on splashproof sipper lid that closes over the drinking hole.  The 6oz insulated cup in stainless steel has a push-in quicksip lid made from clear 50% recycled Tritan. The Tritan lid is not microwave safe.

How should I care for my 6oz reusable coffee cup to extend its lifespan?

All glass, plastic, or stainless steel 6oz coffee cups are dishwasher safe, but we recommend handwashing to extend the lifespan of your cup. A quick rinse most days or a gentle handwash are all you need to clean KeepCup products, they are designed to be taken apart for easy cleaning so that you can replace parts that are lost, damaged or just a little tired. 
Rinse thoroughly and let your 6oz coffee cup air dry for best results. You can read more about cleaning your KeepCup on our care page. 
If you are not too fussed about preserving the surface finish, top rack of the dishwasher will do just fine.

Are there different designs or colours available for the Extra Small reusable coffee cups?

Absolutely. Choose between tempered glass, lightweight plastic or insulated stainless steel in our 6oz size.  You can choose a clear press-in lid or the Original splashproof lid, cork band, silicone band or no band at all, plus lots of on-trend colour options. Get creative with the Design Your Own and create a 6oz coffee cup that describes your style.