Bloch S0538 Boost Split Sole Dance Trainers | Dance World

BLOCH Size & Fit Advice

BLOCH sizing varies between dancewear and footwear styles. For garments, use actual body measurements rather than everyday clothing size wherever possible. For shoes, use measured foot length as your starting point and always follow the model-specific Dance World Fit Advice shown on the individual product page.

Women's Dancewear

BLOCH Women's Garments Size Chart

Compare bust, waist, hips, girth and inseam to find your recommended BLOCH women's dancewear size.

Size	Bust cm	Waist cm	Hips cm	Girth cm	Inseam cm
2XS UK 6	77–82	56–61	84–89	140–145	76–87
XS UK 8	82–87	61–66	89–94	145–150	76–87
S UK 10	87–92	66–71	94–99	150–155	76–87
M UK 12	92–97	71–76	99–104	155–160	76–87
L UK 14	97–102	76–81	104–109	160–165	76–87
XL UK 16	102–107	81–86	109–114	165–170	76–87

Children's Dancewear

BLOCH Children's Garments Size Chart

Ages are a starting point only. For the most reliable fit, compare the child's bust, waist, hips, girth and inseam measurements with the chart.

Size	Bust	Waist	Hips	Girth	Inseam
CHP Age 2–4 / UK 4	20–21" 51–54 cm	18–19" 46–49 cm	21–23" 54–59 cm	32–35" 82–89 cm	18–20" 46–51 cm
CHS Age 4–6 / UK 6	21–23" 54–59 cm	19–21" 49–54 cm	23–25" 59–64 cm	36–39" 92–99 cm	20–22" 51–56 cm
CHM Age 6–8 / UK 8	23–25" 59–64 cm	21–22" 54–56 cm	25–27" 64–69 cm	40–43" 102–109 cm	22–24" 56–61 cm
CHL Age 8–10 / UK 10	25–27" 64–69 cm	22–23" 56–59 cm	27–29" 69–74 cm	44–47" 112–120 cm	24–26" 61–66 cm
CHL Age 10–12 / UK 12	27–29" 69–74 cm	23–25" 59–64 cm	29–31" 74–79 cm	48–51" 122–130 cm	26–28" 66–71 cm
CHXL Age 12–14 / UK 14	28.5–30" 72–76 cm	24.5–26" 62–66 cm	29.5–31.5" 75–80 cm	51–54" 130–135 cm	26.5–28.5" 68–73 cm

Dance World Tip

For BLOCH leotards and other fitted dancewear, girth is particularly useful because it reflects the full length of the torso. For children's garments, use age as a reference only and prioritise actual body measurements whenever possible.

Adult Shoes

International Adult Shoe Size Conversion

Use this general conversion chart to understand approximate EU, UK and US equivalents. BLOCH shoe sizing varies by style and dance discipline, so always follow the model-specific Dance World Fit Advice.

Foot Length cm	EU	UK	US Women	US Men
21.5	35 / 35.5	2.5–3	4.5–5	3–3.5
22.0	36	3–3.5	5–5.5	3.5–4
22.5	36.5 / 37	3.5–4	5.5–6	4–4.5
23.0	37 / 37.5	4–4.5	6–6.5	4.5–5
23.5	38	4.5–5	6.5–7	5–5.5
24.0	38.5	5–5.5	7–7.5	5.5–6
24.5	39 / 39.5	5.5–6	7.5–8	6–6.5
25.0	40	6–6.5	8–8.5	6.5–7
25.5	40.5	6.5–7	8.5–9	7–7.5
26.0	41 / 41.5	7–7.5	9–9.5	7.5–8
26.5	42	7.5–8	9.5–10	8–8.5
27.0	42 / 42.5	8–8.5	10–10.5	8.5–9
27.5	43	8.5–9	10.5–11	9–9.5
28.0	44	9–9.5	11–11.5	9.5–10
28.5	44.5	9.5–10	11.5–12	10–10.5
29.0	45	10–10.5	12–12.5	10.5–11
29.5	46	10.5–11	12.5–13	11–11.5

Children's Shoes

International Kids' Shoe Size Conversion

Measure the child's foot rather than converting directly from an existing school or trainer size wherever possible. Dance shoes require different amounts of growing room depending on the style, so always check the individual BLOCH shoe fitting advice.

Foot Length cm	EU	UK Kids	US Kids / Youth
14.0	24	7	7.5
14.5	25	7.5	8
15.0	25.5–26	8–8.5	8.5–9
15.5	26.5	9	9.5
16.0	27–27.5	9.5	10
16.5	28	10	10.5
17.0	28.5	10.5	11
17.5	29–30	11–11.5	11.5–12
18.0	30.5	12	12.5
18.5	31	12.5	13
19.0	32–32.5	13–13.5	13.5 / 1Y
19.5	33	1	1.5Y
20.0	33.5	1.5	2Y
20.5	34 / 34.5	2	2.5Y
21.0	35	2.5	3Y
21.5	35.5	3	3.5Y
22.0	36	3.5	4Y
22.5	37	4	4.5Y
23.0	37.5	4.5	5Y
23.5	38	5	5.5Y
24.0	38.5	5.5	6Y
24.5	39	6	6.5Y
25.0	40	6.5	7Y

Before Choosing Your Size

Take dancewear measurements over underwear or close-fitting clothing using a flexible tape measure. For shoes, measure both feet while standing and use the longer measurement as your general starting point.

Bust / Chest Measure around the fullest part of the chest, keeping the tape straight and level.

Waist Measure around the natural waist, usually the narrowest part of the torso.

Hips Measure around the fullest part of the hips and seat, keeping the tape level.

Girth Start at one shoulder, measure down the front of the torso, through the crotch and back to the same shoulder in one continuous loop.

Foot Length Measure from heel to longest toe while standing. Measure both feet and use the longer measurement as your general starting point.

BLOCH Fit Guidance

BLOCH produces footwear for many different dance disciplines, so there is no single BLOCH shoe conversion that accurately predicts the fit of every model. Ballet, jazz, tap, character, contemporary, dancesport and studio shoes can all use different fitting recommendations. Use the international shoe tables above as a reference only and always follow the model-specific Dance World Fit Advice shown on the individual product page.

Dance World Fit Note BLOCH size charts and Dance World sizing recommendations are intended as a guide only. Fit can vary depending on body proportions, garment design, fabric, stretch, foot shape, shoe width, construction and personal preference. Where an individual BLOCH product carries its own sizing recommendation, that model-specific advice should take priority.

Best For Jazz • Hip Hop & Commercial • Irish Dance Practice • Dance Fitness • Teaching • Rehearsals • Multi-Style Training

Description

Some dance trainers specialise. The Bloch S0538 Boost Dance Trainer does almost everything. From Irish dance practice and jazz to commercial, hip hop, teaching and fitness, this long-standing Dance World bestseller combines serious cushioning and support with the flexibility and turning response dancers need from a proper studio trainer.

Substantial enough for repeated impact yet surprisingly articulate through the foot, Boost is the trainer we come back to when a dancer wants one dependable shoe capable of handling a very mixed training schedule.

Bloch S0538 Boost Practice Shoe Personality

Cushioned • Powerful • Versatile • Studio-Proven

Boost isn't trying to look like a delicate dance shoe. In Black, it has the unmistakable attitude of a proper dance sneaker – sporty, substantial and ready to work. It's the shoe you throw into the dance bag when you don't quite know where the day's training is going to take you.

Bloch S0538 Boost – Design & Performance

The S0538 Boost is built very differently from an ordinary sports trainer. Its split, non-marking outsole separates the forefoot and heel sections, allowing considerably more articulation through the arch while still providing a substantial platform beneath the areas taking the greatest impact.

Under the forefoot, Bloch uses a high-density outsole with a dedicated spin spot. This reduces the resistance dancers experience during pivots and 360-degree turns – one of the most important differences between a purpose-built dance trainer and an everyday rubber-soled sneaker.

The heel is where Boost really earns its reputation for comfort. Bloch combines its D.R.T cushioned heel with a lightweight 4 PSI air-cushioned midsole, helping absorb repeated impact during jumps, travelling sequences and longer training sessions. A compression-moulded EVA sock liner adds another layer of cushioning directly beneath the foot.

Support hasn't been sacrificed for all that movement. Boost is made on a high-arch last with built-in arch support and elevation, while the variable lacing system allows dancers to adjust the shoe more precisely through the instep. This gives the trainer a much more connected feeling than simply wearing a conventional fitness shoe for dance.

The lightweight mesh construction keeps the upper breathable, while Bloch's Dri-Lex lining is designed to manage moisture and resist odour and mildew – particularly useful for a trainer that tends to accumulate a lot of studio hours.

What makes Boost special isn't any single feature. It's the balance. There is enough cushioning for impact-heavy training, enough structure for confidence, enough articulation for jazz and commercial work, and a turning surface that doesn't fight the dancer every time choreography changes direction.

Bloch S0538 Boost Technical Profile

Construction Split-Sole Dance Trainer

Upper Lightweight Performance Mesh

Sole Four-Part High-Density Non-Marking Outsole

Turning System Dedicated Forefoot Spin Spot • 360° Turns

Arch High-Arch Last • Built-In Support & Elevation

Midsole Lightweight 4 PSI Air Cushion

Footbed Compression-Moulded EVA Sock Liner

Heel D.R.T Cushioned Heel • Suede Heel Grip

Lining Breathable Dri-Lex

Fastening Variable Lace-Up System

Cushioning High • Air Cushion + EVA + Cushioned Heel

Key Features Split Sole • Spin Spot • Arch Support • Shock Absorption

The Dance World Technical Profile provides a quick overview of each practice shoe's construction, fit and intended use, making it easier to compare different styles at a glance.

Bloch S0538 Boost Practice Shoe DNA™

Our Dance World Practice Shoe DNA™ highlights the five characteristics that define how Boost feels to dance in, helping dancers compare its overall character with other practice shoes and dance trainers.

Comfort

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Layered cushioning made for serious studio hours

Stability

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Substantial heel creates a confident grounded base

Flexibility

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Split construction allows strong arch articulation

Floor Control

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Spin spot balances smooth turns with control

Support

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High-arch last and lacing securely support the foot

The Dance World Practice Shoe DNA™ compares the defining characteristics of practice and social dance shoes. A higher score does not necessarily mean a better shoe - it shows the balance of comfort, stability, flexibility, floor control and support so dancers can choose the feel that best suits their dancing.

Dance World Notes

The genuine all-rounder.
Boost is difficult to put into one dance box. We see it working across everything from Irish dance practice and jazz to commercial, hip hop, teaching and dance fitness – exactly why it has remained such a dependable Dance World bestseller.

Support is one of its strongest cards.
That high-arch last, built-in elevation and adjustable lacing make Boost particularly interesting for dancers who like to feel securely held rather than simply wearing the lightest possible shoe.

Dance World Tip - Don't compare the size number with your everyday trainers. Boost is well known for fitting small. Measure the foot first and use the fit adjustment below rather than assuming your normal trainer size will translate directly.

Bloch S0538 Boost – Dance World Fit Advice

Boost runs small – allow for it from the measured foot.

Adult & Advanced Dancers: Start approximately ½–1 UK size above the measured foot. Choose the closer end for a more connected performance fit and the upper end where foot shape or comfort requires a little more room.

Students & Growing Teens: We generally recommend ½–1 UK size above the measured foot. For a growing dancer, the upper end can provide a little sensible allowance, provided the heel remains secure and the foot does not slide inside the trainer.

Young Dancers: Start approximately 1–1½ UK sizes above the measured foot. This accounts for Boost's naturally small fit while allowing appropriate room for a growing foot.

Dance World Fit Note: Always start from the dancer's measured foot, not their current school shoe or everyday trainer size. Even with growing room, Boost should feel secure through the heel and instep without the foot sliding independently inside the shoe.

Fit advice is a guide only. Foot shape, width, socks and preferred dance fit can affect the best size for each dancer.

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About Bloch Brand

About Bloch - World-Leading Dancewear, Ballet Shoes & Pointe Shoes

For over 90 years, Bloch has been one of the world's most respected dance brands, trusted by dancers, teachers and professionals across every level of dance. Founded in Sydney, Australia, Bloch has built its reputation on exceptional craftsmanship, innovative design and an unwavering commitment to supporting dancers' performance and technique.

From iconic ballet shoes and expertly crafted pointe shoes to dancewear, jazz shoes, tap shoes, ballroom footwear and studio essentials, Bloch combines premium materials with technical expertise to create products that deliver outstanding comfort, durability and performance. Whether you're taking your first ballet class or preparing for professional performances, Bloch continues to inspire generations of dancers with beautifully designed products that help you move with confidence.

Delivery & Returns

All orders are sent via GLS. A signature will be required upon receipt of your order. If there is no-one available to accept the package a calling card will be left behind for you so you can re-arrange delivery.

Free EU Standard Delivery on orders over 99€

Please visit our delivery page for further delivery information and our returns page for returns information.

Customer service can be contacted via email : orders@danceworld.ie

By phone - Ireland: 01 497 6129, UK and Rest of World: 00 353 1 497 6129