Sealskinz

Sealskinz Black Newton Seamless Running Boxer Shorts

~~LE 4,550~~ LE 3,275

Sale Sold out

Shipping calculated at checkout.

S M L XL

Crafted from lightweight and highly breathable nylon, these seamless running boxer shorts offer a smooth, chafe-free fit that moves with you. Moisture-wicking fabric keeps you cool and aerated at all times, maximising comfort on your run. Technology Nylon – Made from high-performance nylon, shorts are lightweight and flexible, assisting natural movement. Nylon wicks moisture away, transferring perspiration away from skin and helping legs breathe. Construction – Seamless design eliminates irritation and friction points, helping you run happier for longer. Activities Made for running, hiking, training and active pursuits, running boxers offer vital support during high-impact activities. A moisture-wicking and breathable fabric keeps you aerated on the move. An elasticated waist provides the optimum fit, while a seamless, ergonomic design stops friction and chafing. Materials and Construction Nylon offers great stretch while remaining breathable. Designed to withstand the demands of active use, these shorts maintain their shape and function after continued wear.

Fabric & Care:

Composition: 92% Nylon, 8% Elastane.
Care Instructions: Machine washable.

Delivery & payment

How payment works

Pay online by card at checkout — quick and secure.
Or choose Cash on Delivery: a 25% deposit confirms your order and you pay the rest when it arrives.

Delivery takes 14–20 days across Egypt. Every order is reviewed by our team before it ships. Prices already include international shipping and customs, so the price you see is the price you pay.

Size & fit

Sizes follow UK brand sizing by age and height (cm). If your child is between sizes, choose the bigger one. Not sure? Message us on WhatsApp with your child's age and height.

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Product: Sealskinz Black Newton Seamless Running Boxer Shorts

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Kids Trousers, Jeans & Bottoms

Size / Age	Height (CM)	Weight (KG)	Chest (CM)	Waist (CM)	Hips (CM)
Up To 3 Months (50 - 62cm)	50 – 62	4.5 – 6 kg	41 – 43	44 – 46	40 – 44
3 – 6 Months (62 - 68cm)	62 – 68	6 – 8 kg	43 – 45	47 – 48	44 – 48
6 – 9 Months (68 - 74cm)	68 – 74	8 – 9.5 kg	45 – 47	48 – 49	48 – 50
9 – 12 Months (74 - 80cm)	74 – 80	9.5 – 11 kg	47 – 49	49 – 50	50 – 52
12 – 18 Months (80 - 86cm)	80 – 86	11 – 12.5 kg	49 – 51	50 – 51	52 – 54
1.5 – 2 Years (86 - 92cm)	86 – 92	12.5 – 14 kg	51 – 53	51 – 52	54 – 56
2 – 3 Years (92 - 98cm)	92 – 98	14 – 16 kg	53 – 55	52 – 53	56 – 58

Newborn & Tiny Baby Reference

Size	Height (CM)	Weight (KG)	Chest (CM)	Waist (CM)
First Size (Newborn) (Up to 50cm)	Up to 50	Up to 3.4 kg	38 – 39	40 – 42
Up to 1 Month (50 - 56cm)	50 – 56	Up to 4.5 kg	39 – 40	42 – 44
Early baby (5lbs)	Up to 44	2.3 kg	—	—
Premature baby (4lbs)	Up to 44	1.8 kg	—	—
Premature baby (3lbs)	Up to 41	1.4 kg	—	—

Kids Clothing & Tops (12 Months - 16 Years)

Size / Age	Height (CM)	Chest (CM)	Waist (CM)	Hips (CM)
12 – 18 Months (80 - 86cm)	80 – 86	49 – 51	50 – 51	52 – 54
1.5 – 2 Years (86 - 92cm)	86 – 92	51 – 53	51 – 52	54 – 56
2 – 3 Years (92 - 98cm)	92 – 98	53 – 55	52 – 53	56 – 58
3 – 4 Years (98 - 104cm)	98 – 104	55 – 57	53 – 54	58 – 60
4 – 5 Years (104 - 110cm)	104 – 110	57 – 59	54 – 55	60 – 62
5 – 6 Years (110 - 116cm)	110 – 116	59 – 61	55 – 56	62 – 65
6 – 7 Years (116 - 122cm)	116 – 122	61 – 63	56 – 57	65 – 67
7 – 8 Years (122 - 128cm)	122 – 128	63 – 66	57 – 59	67 – 70
8 – 9 Years (128 - 134cm)	128 – 134	66 – 69	59 – 61	70 – 73
9 – 10 Years (134 - 140cm)	134 – 140	69 – 72	61 – 63	73 – 76
10 – 11 Years (140 - 146cm)	140 – 146	72 – 75	63 – 65	76 – 80
11 – 12 Years (146 - 152cm)	146 – 152	75 – 79	65 – 68	80 – 84
12 – 13 Years (152 - 158cm)	152 – 158	79 – 82	68 – 70	84 – 88
13 – 14 Years (158 - 164cm)	158 – 164	82 – 86	70 – 73	88 – 92
14 – 15 Years (164 - 170cm)	164 – 170	86 – 90	73 – 76	92 – 96
15 – 16 Years (170 - 176cm)	170 – 176	90 – 94	76 – 78	96 – 100

Girls Dresses & Skirts (12 Months - 16 Years)

Size / Age	Height (CM)	Chest (CM)	Waist (CM)	Hips (CM)
12 – 18 Months (80 - 86cm)	80 – 86	49 – 51	50 – 51	52 – 54
1.5 – 2 Years (86 - 92cm)	86 – 92	51 – 53	51 – 52	54 – 56
2 – 3 Years (92 - 98cm)	92 – 98	53 – 55	51 – 52	56 – 58
3 – 4 Years (98 - 104cm)	98 – 104	55 – 57	52 – 54	58 – 60
4 – 5 Years (104 - 110cm)	104 – 110	57 – 59	54 – 55	60 – 63
5 – 6 Years (110 - 116cm)	110 – 116	59 – 61	55 – 56	63 – 66
6 – 7 Years (116 - 122cm)	116 – 122	61 – 63	56 – 57	66 – 68
7 – 8 Years (122 - 128cm)	122 – 128	63 – 67	57 – 59	68 – 72
8 – 9 Years (128 - 134cm)	128 – 134	67 – 70	59 – 61	72 – 75
9 – 10 Years (134 - 140cm)	134 – 140	70 – 74	61 – 63	74 – 78
10 – 11 Years (140 - 146cm)	140 – 146	74 – 76	63 – 64	78 – 81
11 – 12 Years (146 - 152cm)	146 – 152	76 – 80	64 – 67	81 – 85
12 – 13 Years (152 - 158cm)	152 – 158	80 – 83	67 – 69	85 – 88
13 – 14 Years (158 - 164cm)	158 – 164	82 – 86	69 – 72	87 – 91

Kids Trousers, Jeans & Bottoms (12 Months - 16 Years)

Size / Age	Height (CM)	Waist (CM)	Hips (CM)	Inside Leg (CM)
12 – 18 Months (80 - 86cm)	80 – 86	50 – 51	52 – 54	30
1.5 – 2 Years (86 - 92cm)	86 – 92	50 – 51	52 – 54	33
2 – 3 Years (92 - 98cm)	92 – 98	51 – 52	54 – 56	38
3 – 4 Years (98 - 104cm)	98 – 104	52 – 53	56 – 58	43
4 – 5 Years (104 - 110cm)	104 – 110	53 – 54	58 – 61	47
5 – 6 Years (110 - 116cm)	110 – 116	54 – 55	61 – 64	51
6 – 7 Years (116 - 122cm)	116 – 122	55 – 56	64 – 66	55
7 – 8 Years (122 - 128cm)	122 – 128	56 – 58	66 – 69	59
8 – 9 Years (128 - 134cm)	128 – 134	58 – 60	69 – 72	63
9 – 10 Years (134 - 140cm)	134 – 140	60 – 62	72 – 75	66
10 – 11 Years (140 - 146cm)	140 – 146	62 – 64	75 – 78	69
11 – 12 Years (146 - 152cm)	146 – 152	64 – 67	78 – 82	72
12 – 13 Years (152 - 158cm)	152 – 158	66 – 69	81 – 85	75
13 – 14 Years (158 - 164cm)	158 – 164	68 – 71	84 – 88	77

Children Footwear & Shoes

UK Size	EU Size	US Size	Foot Length (CM)	Approx Age
UK 0 (Infant)	16	US 1	8.5	0 – 3 mths
UK 1 (Infant)	17	US 2	9.5	3 – 6 mths
UK 2 (Infant)	18	US 3	10.5	6 – 9 mths
UK 3	19	US 4	11.5	9 – 12 mths
UK 4	20	US 5	12.3	12 – 18 mths
UK 5	21.5	US 6	13.1	1.5 – 2 yrs
UK 6	23	US 7	14.0	2 – 2.5 yrs
UK 7	24	US 8	14.8	2.5 – 3 yrs
UK 8	25.5	US 9	15.6	3 – 3.5 yrs
UK 9	27	US 10	16.5	3.5 – 4 yrs
UK 10	28	US 11	17.3	4 – 4.5 yrs
UK 11	29	US 12	18.1	4.5 – 5 yrs
UK 12	30.5	US 13	19.0	5 – 6 yrs
UK 13	32	US 1	19.8	6 – 7 yrs
UK 1 (Junior)	33	US 2	20.6	7 – 8 yrs
UK 2 (Junior)	34	US 3	21.5	8 – 9 yrs
UK 3 (Junior)	35.5	US 4	22.3	9 – 10 yrs
UK 4 (Junior)	37	US 5	23.1	10 – 11 yrs
UK 5 (Junior)	38	US 6	24.0	11 – 12 yrs

Costumes & Dress-Up Outfits

Costume Size	Age	Height (CM)	Chest (CM)	Waist (CM)
Toddler (S)	2 – 3 Years	92 – 98	53 – 55	51 – 52
Small (M)	3 – 4 Years	98 – 104	55 – 57	52 – 53
Medium (L)	5 – 6 Years	110 – 116	59 – 61	54 – 55
Large (XL)	7 – 8 Years	122 – 128	63 – 66	56 – 58
Tween	9 – 11 Years	134 – 146	69 – 75	60 – 64

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Sealskinz Black Newton Seamless Running Boxer Shorts