ErgoFlex & ErgoFlex Buttons

Our school backpack ErgoFlex is as comfortable as a usual, typical solid schoolbag – with an empty weight of only approximately 800 grams. For a perfect fit, the shoulder straps can easily be adjusted to the child’s back. It fits, suits and has room for everything needed. The ErgoFlex comes with elaborately designed motive on the top lid or with buttons to be clipped on the schoolbag or sports bag … for more individuality in everyday life at school.

Further information & Details

The ErgoFlex is so ergonomic and suitable for children’s backs that it is awarded the AGR seal of approval. Click here for more information.

The backpack adapts to the size of the child’s back thanks to the vertically adjustable back strap system.

The anatomically-designed S-shaped straps with breathable mesh lining can easily be adapted to the child’s back and fixed with a hook and loop fastener.

The hip belt relieves both shoulders and back. Thanks to a hook and loop fastener it can easily be removed by pulling it out of the loop.

Two large main compartments for ergonomic and back-friendly packing (pack heavy books always close to the body).

Protective base keeps the schoolbag dry.

With retroreflective material. Visibility is improved thanks to the retroreflective areas which reflect incoming light and thus develop a flash-effect.

The ErgoFlex comes with elaborately designed motive on the top lid or with a 3-pcs. set of buttons to be clipped on the schoolbag or sports bag.

The DerDieDas pencil cases are equipped with high quality colored pencils „Noris Colour“ from Staedtler/Germany, in ergonomic triangular shape and with A·B·S (white protective coating which reinforces the lead core and increases break-resistance).

Material made from recycled PET bottles – an active contribution to the protection of the environment.

From collection 2020/21 on, DerDieDas grants a warranty of 4 years on schoolbags and accessories.

ErgoFlex Exclusive Collection

ErgoFlex Exclusive “Superflash”
Extreme luminosity for more saftey – thanks to additional reflective material on top lid, front pocket and side pockets.

ErgoFlex Exclusive LED.
LEDs draw attention to the ring around the porthole. The LED light can easily be activated at the push of a button and beams as long as the child is moving. As soon as the schoolbag is put down the light goes out – and battery energy is saved.

The ErgoFlex comes as a set!

ErgoFlex & ErgoFlex MAX Exclusive "Superflash"

Design „Silver Soccer“, Limited

With additional retroreflective material on the lid and the side areas.

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405145

Set price:
RRP € 279.00

ErgoFlex & ErgoFlex MAX Exclusive LED

Design „Red Planet“, Limited

With a flashing ring around the porthole.

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405150

Set price:
RRP € 269.00

ErgoFlex & ErgoFlex MAX Exclusive LED

Design „Superheld“, Limited

With a flashing ring around the porthole.

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405149

Set price:
RRP € 269.00

ErgoFlex

Design „Ghost“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405143.

Set price:
RRP € 269.00

ErgoFlex

Design „Polar“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405142.

Set price:
RRP € 269.00

ErgoFlex

Design „Dragon Eye“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405141.

Set price:
RRP € 269.00

ErgoFlex

Design „Speed Power“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405140.

Set price:
RRP € 269.00

ErgoFlex

Design „Big Rex“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405135.

Set price:
RRP € 269.00

ErgoFlex

Design „Scorpio“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405133.

Set price:
RRP € 269.00

ErgoFlex

Design „Green Goal“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405134.

Set price:
RRP € 259.00

ErgoFlex

Design „Snake“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405113.

Set price:
RRP € 259.00

ErgoFlex

Design „Stardust“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405111.

Set price:
RRP € 259.00

ErgoFlex & ErgoFlex MAX Exclusive "Superflash"

Design „Silver Shine“, Limited

With additional retroreflective material on the lid and the side areas.

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405146

Set price:
RRP € 279.00

ErgoFlex & ErgoFlex MAX Exclusive LED

Design „Glitter Rose“, Limited

With a flashing ring around the porthole.

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405148

Set price:
RRP € 269.00

ErgoFlex & ErgoFlex MAX Exclusive LED

Design „Sternenglanz“, Limited

With a flashing ring around the porthole.

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405147

Set price:
RRP € 269.00

ErgoFlex

Design „Boho“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405139.

Set price:
RRP € 269.00

ErgoFlex

Design „Star Princess“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405138.

Set price:
RRP € 269.00

ErgoFlex

Design „Karibik“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405137.

Set price:
RRP € 269.00

ErgoFlex

Design „Nature Love“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405136.

Set price:
RRP € 269.00

ErgoFlex

Design „Pink Panda“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405132.

Set price:
RRP € 269.00

ErgoFlex

Design „Blue Fairy“

5-pcs set. Set components: Schoolbag including a set of 3 buttons, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405130.

Set price:
RRP € 269.00

ErgoFlex

Design „Mariposa“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405131.

Set price:
RRP € 259.00

ErgoFlex

Design „Water Lily“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405108.

Set price:
RRP € 259.00

ErgoFlex

Design „Purple Princess“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 28 x 38 x 25 cm, Capacity approx. 22 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405106.

Set price:
RRP € 259.00