O'Neill Heat 5mm Round Toe Boots £43.96

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O'Neill Heat 5mm Round Toe Boots

O'Neill

Heat 5mm Round Toe Boots

Sale price£43.96 Regular price£54.95

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SKU: 4789002-BLK-6

Size:US 6

US 5

US 6

US 7

US 8

US 9

US 10

US 11

US 12

US 13

US 14

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Only 1 unit left

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O'Neill Heat 5mm Round Toe Boots

US 6

4 St Ives Store

Pickup currently unavailable

St Ives
United Kingdom

+441271816070

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Pickup available, usually ready in 24 hours

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2 Cowbridge Store

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5 Exeter Store

Pickup currently unavailable

164 Fore Street
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3 Plymouth Store

Pickup currently unavailable

36 New George Street
Tiki Surf
Plymouth PL1 1RW
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Size Guide - O'Neill

NOTE: O'Neill wetsuits are listed as US sizing.

Men's wetsuits

If your measurements border on the top end of your chosen size, go for the next size up.

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	168-173	52-59	90-93	70-72
XS	170-175	57-64	93-95	72-75
SS	166-171	59-68	95-99	75-79
S	173-178	61-70	95-99	75-79
ST	183-188	66-75	95-99	75-79
MS	169-174	66-75	99-104	79-84
M	175-180	70-77	99-104	79-84
MT	185-191	73-82	99-104	79-84
LS	171-177	73-82	104-110	84-89
L	178-183	77-86	104-110	84-89
LT	188-193	82-91	104-110	84-89
XLS	174-179	82-91	110-117	89-94
XL	180-185	86-95	110-117	89-94
XLT	191-196	91-100	110-117	89-94
2XL	183-188	95-104	117-123	94-99
3XL	183-191	104-113	123-130	99-112
4XL	185-193	113-122	130-136	112-122

Women's wetsuits

If your measurements border on the top end of your chosen size, go for the next size up.

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2 (UK 4)	155-160	41-48	76-81	62-67
4 (UK 6)	160-165	45-52	77-83	64-69
6S (UK 8S)	159-164	48-54	80-85	66-71
6 (UK 8)	163-168	50-57	80-85	66-71
6T (UK 8T)	166-171	52-59	80-85	66-71
8S (UK 10S)	161-166	52-59	83-88	69-74
8 (UK 10)	165-170	54-61	83-88	69-74
8T (UK 10T)	169-174	57-64	83-88	69-74
10S (UK 12S)	164-169	57-66	86-91	74-77
10 (UK 12)	168-173	59-68	86-91	74-77
10T (UK 12T)	171-177	61-70	86-91	74-77
12 (UK 14)	170-175	64-73	90-95	77-81
14 (UK 16)	173-178	68-77	94-99	79-85
16 (UK 18)	175-180	75-84	98-103	85-89

Kids wetsuits

If your measurements border on the top end of your chosen size, go for the next size up.

O'Neill product size	Length (cm)	Weight (kg)	Chest (cm)	Waist (cm)
1	88-98	11-13.5	48-53	45.5-51
2	98-108	13.5-16	51-56	48-53
3	108-118	16-18	53-58	51-56
4	118-126	18-25	58-64	51-56
6	126-133	22.5-29.5	62-67	55-60
8	133-141	27-34	66-71	58-64
10	141-147	34-41	71-76	58-64
12	147-155	41-48	74-79	64-69
14	155-163	48-54.5	79-84	69-74
16	163-170	54.5-61	84-89	71-76

Men's wetsuit boots

O'Neill product size	EU size	UK size	NEOSOCK
5	36	4	XS
6	37/38	5	XS
7	39	6	S
8	40	7	S
9	41/42	8	M
10	43	9	M
11	44	10	L
12	45	11	L
13	46	12	XL
14	47/48	13	XL

Men's wetsuit hoods & caps

O'Neill product size	Neck (cm)	Head (cm)
XS	36-38	48-53
S	37-39	51-56
M	38-41	53-58
L	39-42	56-61
XL	41-43	58-64
2XL	42-44	61-66

Men's wetsuit gloves

Hand Length: Measurement from the bottom of your palm (where it meets your wrist) to the top of your finger.
Circumference: Measurement of the circumference of your hand from the first knuckle line, do not include the thumb.

O'Neill product size	Hand length (cm)	Circumference (cm)
2XS	15.2-16.5	16.5-17.8
XS	16.5-17.8	17.8-19.1
S	17.8-19.1	19.1-20.3
M	19.1-20.3	20.3-21.6
L	20.3-21.6	21.6-22.9
XL	21.6-22.9	22.9-24.1
2XL	22.9-24.1	24.1-25.4

Women's wetsuit boots

O'Neill product size	EU size	UK size	NEOSOCK
5	36	4	XS
6	37/38	5	XS
7	39	6	S
8	40	7	S
9	41/42	8	M
10	43	9	M
11	44	10	L
12	45	11	L
13	46	12	XL
14	47/48	13	XL

Women's wetsuit hoods & caps

O'Neill product size	Neck (cm)	Head (cm)
XS	36-38	48-53
S	37-39	51-56
M	38-41	53-58
L	39-42	56-61
XL	41-43	58-64
2XL	42-44	61-66

Women's wetsuit gloves

Hand length: Measurement from the bottom of your palm (where it meets your wrist) to the top of your finger.
Circumference: Measurement of the circumference of your hand from the first knuckle line, do not include the thumb.

O'Neill product size	Hand length (cm)	Circumference (cm)
2XS	15.2-16.5	16.5-17.8
XS	16.5-17.8	17.8-19.1
S	17.8-19.1	19.1-20.3
M	19.1-20.3	20.3-21.6
L	20.3-21.6	21.6-22.9
XL	21.6-22.9	22.9-24.1
2XL	22.9-24.1	24.1-25.4

Kids wetsuit boots

Please note that our wetsuit boots are listed in US size. Convert your size in the chart below.

O'Neill product size (US)	EU size	UK size
XS	26-27	7-8
S	28-29	9-10
M	30-31	11-12
L	32-33	13-1
XL	34-35	2-3

Kids wetsuit hoods & caps

O'Neill product size	Neck (cm)	Head (cm)
10	31.5-34	55-58
12	33-35.5	57-59.5
14	34-37	57.5-60
16	35.5-38	58-61

Kids wetsuit gloves

Hand length: Measurement from the bottom of your palm (where it meets your wrist) to the top of your finger.
Circumference: Measurement of the circumference of your hand from the first knuckle line, do not include the thumb.

O'Neill product size	Hand length (cm)	Circumference (cm)
S	14.6-15.9	15.2-16.5
M	15.2-16.5	15.9-17.1
L	15.9-17.1	16.5-17.8
XL	16.5-17.8	17.1-18.4

Men's skins & UV protection

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	168-173	52-59	90-93	70-72
XS	170-175	57-64	93-95	72-75
S	173-178	61-70	95-99	75-79
M	175-180	70-77	99-104	79-84
L	178-183	77-86	104-110	84-89
XL	180-185	86-95	110-117	89-94
2XL	183-188	95-104	117-123	94-99
3XL	183-191	104-113	123-130	99-112

Women's skins & UV protection

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	160-165	45-52	77-83	64-69
XS	163-168	50-57	80-85	66-71
S	165-170	54-61	83-88	69-74
M	168-173	59-68	86-91	74-77
L	170-175	64-73	90-95	77-81
XL	173-178	68-77	94-99	79-85
2XL	175-180	75-84	98-103	85-89

Kids skins & UV-protection

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
6M	58-68.5	5-7.5	43	42-44.5
12M	68.5-73.5	7.5-10	46	44.5-47
18M	73.5-79	10-12	48	47-49.5
1	88-98	11-13.5	48-53	45.5-51
2	98-108	13.5-16	51-56	48-53
3	108-118	16-18	53-58	51-56
4	118-126	18-25	58-64	51-56
6	126-133	22.5-29.5	62-67	55-60
8	133-141	27-34	66-71	58-64
10	141-147	34-41	71-76	58-64
12	147-155	41-48	74-79	64-69
14	155-163	48-54.5	79-84	69-74
16	163-170	54.5-61	84-89	71-76

Size Guide - O'Neill

NOTE: O'Neill wetsuits are listed as US sizing.

Men's wetsuits

If your measurements border on the top end of your chosen size, go for the next size up.

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	168-173	52-59	90-93	70-72
XS	170-175	57-64	93-95	72-75
SS	166-171	59-68	95-99	75-79
S	173-178	61-70	95-99	75-79
ST	183-188	66-75	95-99	75-79
MS	169-174	66-75	99-104	79-84
M	175-180	70-77	99-104	79-84
MT	185-191	73-82	99-104	79-84
LS	171-177	73-82	104-110	84-89
L	178-183	77-86	104-110	84-89
LT	188-193	82-91	104-110	84-89
XLS	174-179	82-91	110-117	89-94
XL	180-185	86-95	110-117	89-94
XLT	191-196	91-100	110-117	89-94
2XL	183-188	95-104	117-123	94-99
3XL	183-191	104-113	123-130	99-112
4XL	185-193	113-122	130-136	112-122

Women's wetsuits

If your measurements border on the top end of your chosen size, go for the next size up.

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2 (UK 4)	155-160	41-48	76-81	62-67
4 (UK 6)	160-165	45-52	77-83	64-69
6S (UK 8S)	159-164	48-54	80-85	66-71
6 (UK 8)	163-168	50-57	80-85	66-71
6T (UK 8T)	166-171	52-59	80-85	66-71
8S (UK 10S)	161-166	52-59	83-88	69-74
8 (UK 10)	165-170	54-61	83-88	69-74
8T (UK 10T)	169-174	57-64	83-88	69-74
10S (UK 12S)	164-169	57-66	86-91	74-77
10 (UK 12)	168-173	59-68	86-91	74-77
10T (UK 12T)	171-177	61-70	86-91	74-77
12 (UK 14)	170-175	64-73	90-95	77-81
14 (UK 16)	173-178	68-77	94-99	79-85
16 (UK 18)	175-180	75-84	98-103	85-89

Kids wetsuits

If your measurements border on the top end of your chosen size, go for the next size up.

O'Neill product size	Length (cm)	Weight (kg)	Chest (cm)	Waist (cm)
1	88-98	11-13.5	48-53	45.5-51
2	98-108	13.5-16	51-56	48-53
3	108-118	16-18	53-58	51-56
4	118-126	18-25	58-64	51-56
6	126-133	22.5-29.5	62-67	55-60
8	133-141	27-34	66-71	58-64
10	141-147	34-41	71-76	58-64
12	147-155	41-48	74-79	64-69
14	155-163	48-54.5	79-84	69-74
16	163-170	54.5-61	84-89	71-76

Men's wetsuit boots

O'Neill product size	EU size	UK size	NEOSOCK
5	36	4	XS
6	37/38	5	XS
7	39	6	S
8	40	7	S
9	41/42	8	M
10	43	9	M
11	44	10	L
12	45	11	L
13	46	12	XL
14	47/48	13	XL

Men's wetsuit hoods & caps

O'Neill product size	Neck (cm)	Head (cm)
XS	36-38	48-53
S	37-39	51-56
M	38-41	53-58
L	39-42	56-61
XL	41-43	58-64
2XL	42-44	61-66

Men's wetsuit gloves

Hand Length: Measurement from the bottom of your palm (where it meets your wrist) to the top of your finger.
Circumference: Measurement of the circumference of your hand from the first knuckle line, do not include the thumb.

O'Neill product size	Hand length (cm)	Circumference (cm)
2XS	15.2-16.5	16.5-17.8
XS	16.5-17.8	17.8-19.1
S	17.8-19.1	19.1-20.3
M	19.1-20.3	20.3-21.6
L	20.3-21.6	21.6-22.9
XL	21.6-22.9	22.9-24.1
2XL	22.9-24.1	24.1-25.4

Women's wetsuit boots

O'Neill product size	EU size	UK size	NEOSOCK
5	36	4	XS
6	37/38	5	XS
7	39	6	S
8	40	7	S
9	41/42	8	M
10	43	9	M
11	44	10	L
12	45	11	L
13	46	12	XL
14	47/48	13	XL

Women's wetsuit hoods & caps

O'Neill product size	Neck (cm)	Head (cm)
XS	36-38	48-53
S	37-39	51-56
M	38-41	53-58
L	39-42	56-61
XL	41-43	58-64
2XL	42-44	61-66

Women's wetsuit gloves

Hand length: Measurement from the bottom of your palm (where it meets your wrist) to the top of your finger.
Circumference: Measurement of the circumference of your hand from the first knuckle line, do not include the thumb.

O'Neill product size	Hand length (cm)	Circumference (cm)
2XS	15.2-16.5	16.5-17.8
XS	16.5-17.8	17.8-19.1
S	17.8-19.1	19.1-20.3
M	19.1-20.3	20.3-21.6
L	20.3-21.6	21.6-22.9
XL	21.6-22.9	22.9-24.1
2XL	22.9-24.1	24.1-25.4

Kids wetsuit boots

Please note that our wetsuit boots are listed in US size. Convert your size in the chart below.

O'Neill product size (US)	EU size	UK size
XS	26-27	7-8
S	28-29	9-10
M	30-31	11-12
L	32-33	13-1
XL	34-35	2-3

Kids wetsuit hoods & caps

O'Neill product size	Neck (cm)	Head (cm)
10	31.5-34	55-58
12	33-35.5	57-59.5
14	34-37	57.5-60
16	35.5-38	58-61

Kids wetsuit gloves

Hand length: Measurement from the bottom of your palm (where it meets your wrist) to the top of your finger.
Circumference: Measurement of the circumference of your hand from the first knuckle line, do not include the thumb.

O'Neill product size	Hand length (cm)	Circumference (cm)
S	14.6-15.9	15.2-16.5
M	15.2-16.5	15.9-17.1
L	15.9-17.1	16.5-17.8
XL	16.5-17.8	17.1-18.4

Men's skins & UV protection

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	168-173	52-59	90-93	70-72
XS	170-175	57-64	93-95	72-75
S	173-178	61-70	95-99	75-79
M	175-180	70-77	99-104	79-84
L	178-183	77-86	104-110	84-89
XL	180-185	86-95	110-117	89-94
2XL	183-188	95-104	117-123	94-99
3XL	183-191	104-113	123-130	99-112

Women's skins & UV protection

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	160-165	45-52	77-83	64-69
XS	163-168	50-57	80-85	66-71
S	165-170	54-61	83-88	69-74
M	168-173	59-68	86-91	74-77
L	170-175	64-73	90-95	77-81
XL	173-178	68-77	94-99	79-85
2XL	175-180	75-84	98-103	85-89

Kids skins & UV-protection

O'Neill product size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
6M	58-68.5	5-7.5	43	42-44.5
12M	68.5-73.5	7.5-10	46	44.5-47
18M	73.5-79	10-12	48	47-49.5
1	88-98	11-13.5	48-53	45.5-51
2	98-108	13.5-16	51-56	48-53
3	108-118	16-18	53-58	51-56
4	118-126	18-25	58-64	51-56
6	126-133	22.5-29.5	62-67	55-60
8	133-141	27-34	66-71	58-64
10	141-147	34-41	71-76	58-64
12	147-155	41-48	74-79	64-69
14	155-163	48-54.5	79-84	69-74
16	163-170	54.5-61	84-89	71-76

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Built to handle cold-water conditions, the O’Neill Heat 5mm Round Toe Boots deliver exceptional warmth, comfort, and durability for long winter sessions. Crafted with FluidFlex neoprene and GBS (Glued and Blindstitched) seams, these boots keep water out while maintaining flexibility and comfort.

The Round Toe design provides a natural fit and maximum insulation, while the anti-flush shin strap and forefoot strap ensure a secure, customized feel. A durable Foxing sole offers reliable grip and board feel, making these boots a go-to for cold-water surfers.

Key Features

5mm FluidFlex Neoprene for superior warmth and stretch
Round Toe Design for comfort and insulation
Glued and Blindstitched Seams to block water entry
Anti-Flush Shin Strap for a watertight seal
Torsion Control Forefoot Strap for a locked-in fit
Durable Foxing Sole for grip and protection
Heel Pull Tab for easy on and off

Note: O’Neill Wetsuits products can only be shipped and delivered to customers within the European Union (EU).

Expert Advice

Need advice? Call our hardware team to discuss your queries on 01271 816070

Why buy from Tiki?

Established since 1967, Tiki has been at the forefront of UK surfing ever since. With a huge selection of boards, wetsuits and accessories. Run by surfers for surfers.